Repayment to the department from the provider, family or other source is required should insurance benefits, trusts, court-awarded damages or similar funds become available, and where payments have been made to the vendor or provider for services paid for by DX/TX funds. A provider shall provide repayment to the department for overpayment made for services paid out of DX/TX funds. In instances where repayment is required, the vendor or provider must refund the DX/TX payment to the local CYSHCN agency payable to the department which the local CYSHCN agency must transfer to the department.