No service from Telkom mobile regarding upgrading Data Contract

Have been trying to get one of our data sim cards upgraded since beginning April. Telkom can’t seem to care to assist us with the order placed and we still don’t have the upgraded contract or the equipment as part of the upgrade deal. We have phoned in and e-mailed numerous times with no resolution. The only feedback we receive when enquiring is that the matter is being escalated. Still no feedback or resolve to date.