Angry & Disappointed Customer

I am honestly not happy with the service I receive from MTN I have been calling them and pleading with them to sort out my contract issue but no one has helped.. I have written emails to their collection admin and social media pages, no one have bothered to help... now they want to double charge me the amount I have paid but they do not want to allocate when I have paid..... the interest is growing but I’m not owing.... Please help me my number is ***