Extremely disappointing service from ABSA!!!!

Extremely disappointing service from ABSA!!!! On 18 July 2019 I accidentally paid an amount to my ABSA credit card which has been closed for a few years now but still appearing on my ABSA Online profile. I have continuously contacted the call center to get the amount back and has been asked to send the proofs. It has been 2 weeks without any success or a call back, despite sending the proofs repeatedly and calling on numerous occasions. I have been and ABSA client for over 30 years and this is the service i get, i am disgusted to say the least!!!!