Account payment

i am not a happy customer, i was called by woolworths contact Centre for the passed two weeks everyday twice a week regarding my aacount which i made the payment i spoke to Eric he advise that i should sent proof of payment which i did, then i got another call regarding the same matter from woolworths, i have explain the same story then i was transferred to Brown win Peterson who is not allowed to provide the details of her superior and the head of the department hence they are not allowed to give out the information, then she also advise that i should sent an email to finance department, every email that i receive i got the auto reply with no respond or any feedback from Woolworths, once i finish to pay the account they will be calling me regarding their credit card and personal loan that the currently offer, Woolworths customer service is pathetic i don't want to recommend anyone to open the account there