Emails not answered and call centre useless

I need a paid up letter for a credit card I paid up in 2018. Easy right? WRONG! Called the Absa call centre, waited a long time to get to an agent. Agent said I must call another number. Call the number, wait a long time to get through to an agent again. Get through to an agent who says they have to request it from admin via email. This was on Tuesday last week. By Thursday I still don't have the letter. Call again, wait again, get an agent who says I must email contact card. I do that on Thursday and get a reply on Friday saying that my email will be forwarded to the relevant department for attention. Today is Wednesday. I still don't have my letter. I called the call center again and get transferred to collections department. I asked for the letter again and get told that an email will be sent to admin to forward me the letter. Is this a dream? It feels like it. It's like talking to a wall! No one is responding to emails with this bank! How hard can it be to just get a paid up letter? I am at my wits end here. I need that letter as my useless debt review company never did a debt clearance certificate when my debt was cleared in 2018 and now it shows on my credit record that I am still under debt restructuring. I got all the letters from all my creditors but this one from ABSA! I NEED IT YESTERDAY! What magic do I have to perform to get someone in ABSA to get me my letter?