unhappy

mtn what poor service i have been waiting for a manager to call me for weeks and its not done yet they use mondo to tell lies to people on their behalf my wifi is with mtn where i was told 267.00pm which is being paid now im off and told 721.00 owing which was not paid this is a month to month and when we cancel we return modem so why lies told no other fees payable *** i need this resolved urgently