Bad treatment and being looked down by RCS head office

My name is Sifiso Sibiya ID *** I have an RCS card ACCOUNT for Cape Union Mart there was a time whereby I received an sms that MY PICK AND PAY RCS account is in areas I ran to pick and pay to enquire since I was aware that I don't have any account with pick and pay I thought no this is now a **** pick and pay customer service maage to help me we get to point whereby they realise mistake was from their side I forwarded them all the required documents now my account is blocked and I can't use it and am paying very well for this account and the day they sent the sms was the very same day I paid Cape Union Mart account they want me to go to police station write an affidavit saying that I will be responsible for the account so I need access to make purchase from the account and I feel that is an abuse as I am paying the account and mistake was from their side the guy I was talking to over the phone was a white guy sounding rude thinking that I do not know my rights as a customer