R500 airtime still not reflecting after 48 hours.

I bought R500 airtime on the 21st of July using the Standard Bank banking app. My balance reflects this. It still has not reflected. Over the weekend, I was not sent a message indicating that I had reached 15MB - unknown to me my app use depleted my data and about R100 in airtime. I am currently on R0. I have called the call centre numerous times to little avail - my airtime is yet to reflect. After posting on their Facebook page 3 times and being told the problem would be resolved \soon"and it was just a technical issue I was asked to inbox my details and provide proof of payment. <br> Which I did. I am still waiting for the airtime to reflect 48 hours later and am extremely frustrated. Please assist. """