Internet banking Services on hold due to sim swap

I recently did a sim swap (5th October 2017) because I had to upgrade my phone. On the new phone I had to install the Absa banking app among other apps since most of my transactions I do them online.

Now I can't log into banking app and I can't perform certain functions because it states that your account is on hold due to swim swap. I understand it is a precautionary measure to curb ***** but even the call centre is not answering in order to authenticate that I am the account holder. On website it says it takes 36 hours to lift the temporary hold but it has been more than 36hours

Yesterday I spent an hour on hold with call centre, I couldn't get through am not sure whether there is a high volume of calls or the call centre has been shut.