Data Sim Card blocked every month. Contact center does not have a clue.

Unacceptable. My data SIM stops working EVERY month (Month 5 now). Then I call 135 and everything is fine on their systems, but my internet doesn't work. I can access the MTN Website and FNB, but nothing else. They say I need to talk to MTN Technical, and say I must call 1555. 1555 does not wor****!! It just tells me 1555 is no longer working... I've got the SMS and Voice recording to prove that 1555 no longer works. For MONTHS already...

Then they say they escalate it, but I NEVER get contacted.

Please note that at this point I consider this CONTRACT BREAK from MTN as they are unable to provide the service I am paying for.