Bad service from Vodacom

We have been battling with a fiber migration from December 2020. First, they did not find the form that was sent to them, after sending the form again in February they have still not done it. After numerous calls and promises, they are outside of their SLA and still no feedback after they promised that a manager would have contacted us back before end of business yesterday. We are changed every month for the service while we have no service whatsoever. We can not cancel the service as there is a cancellation fee, but Vodacom can break their contract and does not have to treat their customers fairly without any problem or repercussions