******* service from Ithuba National Lottery

Very poor service from the nationa lottery operator Ithuba. I have an online account woth them and i was recently asked to update/change my pin for when i access my account however I could not do so as the number I had used to register was no longer my number. I called in ro their call centre to see if they will be able to update my number from the old one to the new one. Firstly i was told that i need to send an email explaining my situation and the number will then be updated. I waited but did not receive any feedback and thats when I called in again and to my surprise I was told that it will not be possible to change the number and i needed to do a sim swap so I can access my old number. I contacted my nerwork provider and was told the number had already been recycled. Ithuba tells me that they are still busy with changing the way they update details and when I ask for a timeframe the consultant told me they do not have one. His words were "it can be weeks or months", so what am i supposed to do in the meantime because the reason I registed in the first place was for convince. I feel that the Ithuba National Lottery should have a system in place where by one can recieve an OTP via email if the number that was used is no longer in use.