"Everything that we got, we had to fight for," Calehr said.
Along with other relatives of victims, the family was put up in a hotel at Amsterdam's Schiphol Airport and was tended to by Malaysia Airlines staff in the days after the disaster.
Miguel and Shaka Panduwinata were on their way from Amsterdam to Bali for a vacation with their grandmother when Flight 17 was shot down, killing all 298 passengers and crew.
The family complains that there has been no offer of any grief counselling by the airline, that it refused to pay for the boys' grandmother to fly home to Texas from Amsterdam and that it has not yet paid out an initial reimbursement of $5,000 it pledged to victims' next of kin.
Addressing the issue of the grandmother's flight, Malaysia Airlines said in a written response emailed to The Associated Press that only "immediate next-of-kin" are eligible for travel reimbursements. But it added, "this situation will be reviewed on a case-by-case basis."
The carrier added that distributing the $5,000 payment to next-of-kin "requires a thorough verification process."
"The documentations are being prepared as we speak," it said.
Malaysia Airlines did not specifically address the complaint about lack of counseling, but pledged to focus on the needs of family members.
Miguel and Shaka's next of kin are not the only ones who have not received the $5,000 payout that is meant to cover initial expenses incurred by grieving families.
Silene Fredriksz-Hoogzand, whose son Bryce and his girlfriend Daisy Oehlers died on their way to a vacation in Bali, said she has not received any money yet.
"I'm just waiting," she said. "I have the feeling it is not very organized."
Associated Press writer Eileen Ng in Kuala Lumpur, Malaysia, contributed.