The union has given the national executives of CLOSAG, two months to refund all monies unlawfully deducted from their salaries.
It said its members since July, 2014, have been seeing on their pay slips, two per cent monthly deductions, which are paid to CLOGSAG which is a rival union.
The Regional Chairman, Mr. Herold Opoku Amankwah, said they would use all legal processes to get their money back.
He told a press conference in Kumasi that they were unhappy with the way things were being handled, adding that CLOSAG had no right to make any deductions from their salaries in the name of CLOSAG Fund - a third tier pension scheme and its savings and loans scheme.
He said it was wrong for anybody to do this without the consent of workers of the metropolitan, municipal and district assemblies (MMDAs).