Horrible custormer service at MTN

I am completely clueless in what I can do next.

I ordered LTE through MTN. I submitted the documentation and then..... nothing. No communication of any sort.

Since then I have phoned MTN countless times. Every time I get to a "service champion" they put me through to the "contract department". From there, nothing happens. The line just goes silent. I have done this numerous times. The last call I made the agent said I should phone 808 or 083808 instead. The number is not active anymore! If you phone that number it simply says you need to phone 135 again. How can MTN's own people not know what's happening in their company!

I just want to cancel the order by now. It was a terrible mistake to think it would work through MTN.

The dilemma: Who do I contact to cancel the order as e-mails get no response and no agent in the contact centre can help me. How ridiculous!!!