Billing query/account A***

I have been querying my billing acc (A***) for past three months via email, online and call center regarding the subs fee being charged on my account. I even went to MTN H/O and I was assured that the subs will be cancelled as I did not sign for it. Furthermore upon calling Mira Network as suggested by MTN agent for refund, I was told that according to their records, my number is not listed as a subscriber.<br> <br> I am very frustrated with MTN poor customer service to an extent that I considering not renewing the contract when it expire.<br> <br> Every time I followed up on a query, all I get is a reference number, and to date I have more than 10 reference numbers, but the matter remain unresolved. My options to escalate the matter is limited by the fact that MTN process to query a bill is limited to call canter or an email to customer service which has not been helpful, <br> <br>