MTN has no shame and they don't care about customers

I returned the router to MTN around the 10th of September due to persistent issues with data not being loaded which rendered the service unusable. I had followed up multiple times and the consultant would not answer why the data was not loaded as the payment is always a month ahead ,for my service s to be cut off ,i would have to be 2 months ahead. Anyways I have phoned ,emailed ,complained on Twitter ,to this day ,i have not eceived confirmation of cancellation and of when the money paid for the time i did not have data would be refunded . to make matters worse ,weeks after returning the router and filling cancellation forms ,yesterday at 01h45 am,whilst I am sleeping...MTN sends a message to my phone saying the device has been repaired and would be returned to the shop. I did not submit the device for repairs ,it was for cancellation of the contract .MTN has no shame and they don't care about customers.This are the reference numbers: ***....***...***....***