Rights group Adhoc on Wednesday sent a letter to the Ministry of Labour demanding they provide further support for people who, the ministry determined, were scammed by a company offering foreign job postings.

Labour Ministry officials on May 11 ordered Rice Natural Co Ltd and Century Manpower Co Ltd to repay people who each gave $400 to one of the companies, which promised to find them employment in Japan, but never fulfilled their end of the bargain. However, Adhoc’s letter says that not enough of the victims are receiving their refunds.

“We receive between two and three complaints per day,” reads the letter signed by Lim Mony, Adhoc’s senior investigator in charge of dispute resolution. “The complaints continue to increase every day.”

As of Wednesday, Adhoc had received 230 complaints from people saying they were victims of the scam, but found only 83 have been reimbursed.

Labour Ministry spokesman Heng Sour said on Tuesday that on that day alone, they had overseen the repayment of 26 workers.