Telkom service disgusting

We are a very busy Psychiatry practice. Telkom started replacing the copper cables in our area (Alberton) at the beginning of the year. They then delivered new equipment to replace the copper equipment. Unfortunately we don't have signal for Telkom's LTE in the office where we are located. We then opted to cancel with Telkom and port to a new service provider. We packed up Telkom's equipment and installed the new provider's equipment. Now, all that is required from Telkom, is to cancel the migration order and release our numbers for porting. Other service providers do this within 24 hours. Telkom has not done this yet even though this issue has been going on since February. I have called a number of Telkom's employees dealing with these matters. They have sent me from pillar to post. Some don't even answer their phones or the numerous emails sent to them. We are losing work due to patients not being able to reach us.