Poor services

I payed my account on the 7 Feb the money i payed into a Nedbank account until today they cept on telling me they did not received the payment after i faxed and emailed it 5 time yesterday i made a nother payment because they told me it was in a wrong account so i payed it into a Standardbank account faxed it 2 times and emailed it and still telling me they did not received my payment this just can not going on like this