Account Closure Request not fulfilled - Interest accrued

I am really frustrated with the lack of service from Standard Bank. I have received a statement for a Student Achiever account with accumulated interest. Kindly note that I requested that this account be closed in 2017 while I was still studying, and again in 2021.

My request has not been fulfilled and continue to receive statements with interest on this account. I request that all charges are reversed and close this account with immediate effect.

Owing to the fact that my in-branch visits have failed, I sent written communication to *** The response received is that that “account closures are done at the branch, kindly visit the nearest Standard Bank branch for further assistance. You are welcome to contact us, should you require further assistance.”

I further requested contact details of a banker whom I can escalate this to. I have had no further response from Standard Bank.