Mtn is *****ing my data.

I took out a contract with Mtn from 2021,early. So far it has been good, till now. Today I was supposed to get my monthly data as usual but I received it incomplete. I have been waiting the whole day thinking the rest will be loaded on my profile but nothing. I just called 135 and spoke to Xolelwa. Apparently I'm won't receive the rest of my data this month because I don't have one answer to their security questions of which I don't know how they captured my address on their system because I have had the same address ever since. I'm so frustrated.