Cannot get anyone to help

I app**** for a personal loan with Absa. It was approved and a lady by the name of Montaaz called me last week Thursday to finalise. I could not speak at that time and asked to be called back. She called me back and I missed her call as I am at work. Between Friday and today I tried calling her back over 30 times and I can't get through as her number is busy ********** 421. I called the 0860 number on Friday, Saturday and today and spoke to consultants who could not assist me but will get her to call me. I am still waiting. I emailed Mabel a case manager and asked if I can be called today at 15H30 and still no call. It is so frustrating to receive an Sms to call a number which is busy all the time it's even more frustrating to call a call centre and no one else can assist. Disgusted at the level of service received