Shocking inefficient service from call center staff

Very bad service inefficient staff .opened a new account 10 June 2021 and since this date I have not been able to use this card due to pin reset errors.ihave spoken to so many people at the call center but to no avail.have spoken to Sonja jacobs Sadika and lastly Pamela on Friday.she assisted with pin reset and was successfully done. I received an sms 15 mini later that my card is blocked . I called and spoke to Melissa and she unblocked the card assuring me there is no need to do a pin reset agai****** again I went to the tills to make a purchase and to my utter disappointment and embarrassment card declined. I have spent too much time and call time now as every day I am calling and everyone has a different version of events.norwood store has also called the call center but nothing is resolved.how unprofessional is this as a new customer. This is not giving me any confidence in this retail store .this is just ongoing and I still cannot use this account.anither thing that I don't understand and should be transparent to new customers that this account only works for pre paid cell users to receive sms and other services.shocking shocking service all round