Shockingly bad service from Wesbank

I’ve paid up my account At Wesbank after 72 months by debit order only to find I’ve paid R3525.88 more than what was owed.Silly me expected to just send email to Wesbank with account number and asked if this balance can be paid back in the same account they received their money from for 72 months!!I send numerous emails and every time I get a different reply feeling like they are giving me the runaround.First I must send letter confirming that debit order will go through-done. Then 2 months later after email request They start with a paperwork war, none of my details changed but I must provide “Owner structure declaration “Declaration of source of funds” and when I phone to request payment they will just transfer you from one department to the other.After about 30 minutes you’re call will be dropped.I phoned back 3 times and every time my call was dropped after all their security checks an 30 minutes of listening to recordings on how you can download an app🤦♂️First I thought someone will call me back because they already did a security check and have all my details in front of them- No one call back!!!