poor customer service

So, my checque account was in arrears as i wasn't working,then this year April 2021 i made payments into that account,without knowing standard bank handed me over. I phoned them requesting a refund with all my deposits as proof,its already July and i dont receive any communication.I always phone and get the same reply,that they will get back to me. Im honestly so frustrated with standard bank.They should appoint qualified people as this so unacceptable.