Atrocious customer service from mtn

<p>For the last month I have had terrible data signal at home. I have filled in the coverage form in twice, I have mailed the coverage letter and even sent it to them via Facebook. They never ever get back to me. All they ask for is my contact details whenever I complain on their Facebook page but never contacts me. I have 3 contracts with them and all of them has the same problem. It's impossible to do online banking as the signal is too weak. My wish is for them to fix the problem but so far nothing from their side. </p>