MTN *****ing money through unsolicited WASP subscriptions

Unwanted WASP are installed on both my phone and internet accounts. After looking into the charges, one of these supposed subscription companies has been closed since 2017. I have cancelled these "subscriptions" several times only for them to appear on my account again later. After doing an internet search I found a way to block all WASP subscriptions only to be informed when trying to do this that it is not possible on my account. This is just another way of MTN *****ing our money. I think that this theft is disgusting!!!!