Tuesday marks six months since the last communication was received from an Argentine submarine that vanished into the murky depths of the South Atlantic Ocean.

For the families of the 44 missing crew members of the ARA San Juan, these six months have afforded little in the way of answers to their many questions: What happened? Who's responsible? What was the mission of the San Juan on that fateful voyage? Where is the wreckage? Where are the bodies of their loved ones?

Families complain they have been treated poorly by the government and naval officials since the beginning of their traumatic experience, and say President Mauricio Macri and Defense Minister Oscar Aguad have avoided meeting with them.

This handout picture released by U.S. Navy shows Undersea Rescue Command (URC) and Argentine construction workers preparing the motor vessel Sophie Siem for the installation of the Submarine Rescue Diving and Recompression System (SRDRS) to support the Argentine government's search and rescue efforts for the submarine ARA San Juan in Comodoro Rivadavia, Chubut, Argentina on Nov. 26, 2017.(US Navy/AFP via Getty Images) This handout picture released by U.S. Navy shows Undersea Rescue Command (URC) and Argentine construction workers preparing the motor vessel Sophie Siem for the installation of the Submarine Rescue Diving and Recompression System (SRDRS) to support the Argentine government's search and rescue efforts for the submarine ARA San Juan in Comodoro Rivadavia, Chubut, Argentina on Nov. 26, 2017.

"It's almost as if the government considers us as their enemies," Luis Tagliapietra, father of missing crewman Damian Tagliapietra, told ABC News. "The government, I don't know if they have something to hide or are just incompetent. But they have not done anything to answer our many questions."

"They want to make us invisible," added Isabel Polo, the sister of crew member Daniel Alejandro Polo. "The families have had to go about their lives on their own without really any assistance from the government."

An undated handout photo made available by the Argentine Navy shows the ARA San Juan submarine that disappeared off Argentina's coast with a crew of 44. The US Navy is in the process to deliver Argentina a deep sea  rescue chamber and other aid to assist Argentina in their search efforts.  (Argentina Navy/EPA) An undated handout photo made available by the Argentine Navy shows the ARA San Juan submarine that disappeared off Argentina's coast with a crew of 44. The US Navy is in the process to deliver Argentina a deep sea rescue chamber and other aid to assist Argentina in their search efforts.

The 44 crew members are still receiving their paychecks as they are considered legally alive until their bodies can be found or until the government decrees that they are legally deceased -- something that has not occurred, much to the families' consternation. Other matters such as life insurance, pensions and even accessing private bank accounts have been shelved until the submarine is found or the crew members are declared dead.

A one-time hardship payment to family members of about $15 in January was scoffed at and derided by loved ones.

An undated handout photo made available by the Argentine Navy on Nov. 17, 2017 shows the ARA San Juan submarine. The Argentine Navy said it has lost contact with the the submarine off the country's southern coast. The submarine with a crew of 44 has not made contact in 48 hours.  Navy ships and aircraft are searching the area of last known location.  (Argentine Navy Handout/EPA) An undated handout photo made available by the Argentine Navy on Nov. 17, 2017 shows the ARA San Juan submarine. The Argentine Navy said it has lost contact with the the submarine off the country's southern coast. The submarine with a crew of 44 has not made contact in 48 hours. Navy ships and aircraft are searching the area of last known location.

The search, which early on involved more than a dozen countries and up to 30 specialized planes and ships, has basically been suspended since mid-January. Nine foreign companies have answered an international bid on a government contract for private expeditions to locate the vessel. However, that bid process has been delayed by bureaucratic snafus and renegotiating certain technical aspects of the bid terms.

The search area -- calculated from the last known point of communication and given variables such as air supply, ocean currents, etc. -- is 186,297 square miles, an area the size of Spain and the ocean depths within that zone range from 900 to more than 10,000 feet.

A relative of missing Argentine submarine crew member Celso Oscar Vallejos kneels down to pray, outside Argentina's Navy base in Mar del Plata, on the Atlantic coast south of Buenos Aires, on Nov. 25, 2017. (Alfonsina Tain/AFP via Getty Images) A relative of missing Argentine submarine crew member Celso Oscar Vallejos kneels down to pray, outside Argentina's Navy base in Mar del Plata, on the Atlantic coast south of Buenos Aires, on Nov. 25, 2017.

There are two federal courts investigating the San Juan accident. Marta Yañez, the federal judge in Patagonia in southern Argentina who is in charge of the main investigation did not respond to requests to speak with ABC News. However, someone close to the court investigation said that although dozens of witnesses from the navy and from the defense ministry have been questioned, the case is expected to last at least through the end of the year.

Women look at family pictures of missing Argentine submarine crew member Cesar Oscar Vallejos, hanging outside Argentina's Navy base in Mar del Plata, on the Atlantic coast south of Buenos Aires, on Nov. 24, 2017.(Eitan Abramovich/AFP via Getty Images) Women look at family pictures of missing Argentine submarine crew member Cesar Oscar Vallejos, hanging outside Argentina's Navy base in Mar del Plata, on the Atlantic coast south of Buenos Aires, on Nov. 24, 2017.

Another case in the federal courts of Buenos Aires involves the allegations that the government spied on some of the families, which Luis Tagliapietra said was proven by expert analysis of telephone and email interferences that occurred in the past few months.

Relatives of those missing on Argentina's ARA San Juan submarine gathered on May 11, 2018, to express their discontent with the Argentine government and navy. Luis Tagliapietra's son Damian Tagliapietra and Isabel Vilca's brother Daniel Polo are two of 44 crew members who remain missing.(Joe Goldman/ABC News ) Relatives of those missing on Argentina's ARA San Juan submarine gathered on May 11, 2018, to express their discontent with the Argentine government and navy. Luis Tagliapietra's son Damian Tagliapietra and Isabel Vilca's brother Daniel Polo are two of 44 crew members who remain missing.