Ridiculous and **********!

After waiting for a few months before doing the switch to discovery bank. I am so sorry i ever did that. After years of paying my credit card in full every month I paid the last FNB discovery statement emailed to me in full, and then received no statement from then on! I eventually phoned to ask where my statement was and was then told I had to get it off the app, which was another search! By then I was charged for the few days extra spending and interest on the whole amount because it was considered "late"! I paid the full amount owing well before the due date again. And Again I am charged interest! How does this bank work? I even have "rewards" that get charged instead of received! Then I have to phone as there is no other way to contact anyone and I get charged a fortune to call their no!! I was given a complaints emails address and 7 days after receiving a receipt of email I have still heard nothing! I think they have bitten off way more than they can chew!