Paid up letters

This is my 4th or 5th complaint about standard bank, it seems that if i need feedback on something the only way is through hello peter, Branches are completely useless, the call center is limited to things, which in this scenario, certain duties were taken away from them to inconvenience clients to go into a branch and wait for hours. I have closed my PL on the 13th of May , I have called in numerous times following up on my letter as well as emailing branch consultants; that strangely don't receive my mails in their inbox, unless I'm asking for a new product, This is the reason why I closed 4 products with the bank last week, extremely poor service and inconvenience. I was told i need to wait for 24 hours to get the letter emailed to me, its been well over 4 days now.