Account not credited after paying

I paid my home choice account on the 30th of November 2017 through internet banking and sent proof of payment. They usually send receipt of payment but this time they didn't of which i called them. I was told to send a proof of payment with a bank stamp of which i did on the 28th of December. On the 15th of January 2018 i made a follow up after realizing that on their statement the payment did not reflect and i spoke to a lady by the name of Owethu who told me that they received the bank statement but they cant pass credit because its written "NETBANK" instead of "NEDBANK". The stamp reads Nedbank but the contents as we all know they read netbank. Im told i need to go to the bank and tell them to change their way of writing, how is that possible on this planet. Please Home Choice hire professionals and stop *****ing our hard earned cash.