Business adsl cancelled! Why???

Telkom decided to cancel our business adsl line (when we only wanted to get more data). Despite spending hours on the phone to Telkom and one staff member solely devoted to this issue, we have been without internet for 2 weeks. We are a service provider in the medical industry and this is our busiest time of the year. We are getting legal advice to sue Telkom for loss of business as, unlike Telkom, we actually care about our clients and patients.