Unsuspend my line now or I will cancel

My line was suspended 2 weeks ago, apparently there was an outstanding bill. However when I called Telkom they admitted that they were wrong as they never requested the payment in the first place and I never got an invoice for my March bill. Since I upgrade mid March, I was under the impression that my first bill would be in April. They have since debited March and April bill on Saturday 27/04 however my line is still suspended. I'm really upset and very annoyed. I regret upgrading my WiFi with them. Im a loyal customer and never missed payments. I've been without data for more than 2 weeks now!! WHY DID YOU SUSPEND MY LINE, I WAS NOT AT FAULT???!!!