MTN running a possible **** through their Xchange

MTN running some sort of **** on clients of opposition clients, and even hiding their own identity behind false numbers

This no +**********20605 keep on calling and sending SMS messages using MTN Xchange... then using different numbers like ********** ********** ********** all going through MTN Xchange. I have told them it is the wrong no. I Have send them messages that it is the wrong no. If you block the no they start using a new no. I suspect that this is a **** of some sort being run by MTN, as in 2015 MTN gave their own subscribers a no dile to "opt out of this service", on hello Peter when people started complaining about this. But when questions cam from people using different service providers, they stopped replying and refused to help. Now in 2020 it started again. I wonder if this time around they will also help customers from different services providers from "opting out of their services" I still don't know why MTN is running this service and what their aim is or what they hope to achieve, except for bugging people or hoping that we will change our numbers If I change it will definitely not be to MTN.