Unhapppy customer

I made payment in advance, paid at FNB (their business account number). I paid on the 19th of June 2021,sent them proof of payment bu email. I received my statement in Augusr 2021,still it does not show any payment made. I call them they keep on saying pls email it again, we can't find your email☹️

Yours S. Dhladhla ***