Internet banking #Banking app#Telephone calls no one answers the phone# called 5 times#poor service

I am not able to change my EAP limit on my banking app and I am disabled. I called the number that shows on my profile 4 times already and spent more than R100 airtime. No one answers the phone calls it just kept ringing.I am very dissatisfied with the service.I need to have access to change my Eap limit asap to pay my accounts.please call me asap.