Pick N Pay accounts - untrained instore staff

I have tried everything including phone calls email and visiting the store only to get nowhere!! Six months of having a facility of a pick n pay credit card sold to me in store I have had nothing but headaches. GBS whom I last called followed with a sms of how to do a bank transfer via sms but on the public recipients there is no option for paying pick n pay. The tellers at pick n pay treat the card as a way of earning points and swipe unknowingly wen you wish to pay your account. Three attempts failed and having paid cash at a branch my card is blocked!!! Seriously what about the email asking for someone to call me and the call to speak to someone to resolve it!!! ? I get music and no reply and Head Office is handling my account, is there anything between a service and the service providers as the staff of Pick n pay are not trained to pay for an account and my last shop the teller rather added more credit to my account than payment to the bill- is there a means of closing this account once and for all and never having to try be patient with *********** people! Perhaps there is a short way to close a service you are not getting?! Beyond grateful for my simple life of no store cards and credit facilities the ones that are offered are not worth having and my experience with the Puck N Pay store card has been nothing but frustration- staff have no idea about the credit account facility