Poor Service on RCS Game Stores and Spitz Accounts

I wish to report poor service from RCS regarding a request for refund on over-paid accounts for my Game Stores account and my Spitz account. To my disappointment, this matter has been dragging since April 2021 without any resolution. Despite several e.mails and contacts made with RCS staff based at Game stores to resolve this matter, no positive outcome has been achieved to get my refunds, amid the RCS agreeing to the fact that my respective accounts are on credit/overpaid. The recent correspondence from RCS was that the accounts have no credits due by them despite earlier confirmation by RCS Call Centre staff that the accounts reflect as overpaid.