Terrible speeds, and ZERO internet during power failures.

Not only is our internet extremely slow of late (0.7mbps at best) during peak times, but as soon as we have a power failure there are NO internet whatsoever. Not even a Whatsapp text message can go through. It shows signal bars, but that's it. Vodacom and Telkom works fine during those times. MTN use to be so good, now I'm paying for a contract I cant even use.