RCS cards unable to close my account

I have paid off my RCS account together with the settlement account but money was again debited off my bank account. The RCS people asked for my bank details, ID etc which I have submitted but still, charges & fees are being accumulated & the account remains unclosed. I have sent numerous communication. I'm just fed up with the service being the reason I want to close this account but again with bad service I can't seem to do so....I'm fed up