FNB very bad service and high interest charges

FNB has been charging high interest (+13%) on my house bond for 13 years. I have been querying it with FNB with no luck. FNB claims to have sent a letter( interest change to variable option) to my house address in 2017. I then requested a proof of the sent letter. FNB emailed me a copy of the said letter which has a wrong house number in the address. I followed up and was promised it will be fixed.

FNB once again failed to deliver on it's promises in less than 5 days? Very shocking, disappointing and terrible service.

I was promised that the incorrect address details and costly enforced interest option, in the so called interest notification letter , would be corrected and the copy send to me by Wednesday the 4th/November/2020. NO SURPRISE! Nothing was send or shared with me as promised.

I followed up with a telephone call on Friday the 6th/November/2020. NO SURPRISE! Nothing was send or shared with me as promised (but more empty promises (see the email below).

Very terrible customer service

Disappointed client