3 months waiting for number porting

Few months ago I app**** for a contract with several devices. Each device had to have a number ported from another SP to Telkom except one. This very one was already ported but on prepaid, and had to be converted to contract. For almost three months the change has not taken effect. What's worse is that the number is now disabled, almost non-existent. This is causing serious inconvenience and frustration. People have been trying to call that number with no success. Many important opportunities are now lost. What's left is to sue Telkom for damages. I called and visited the shop many many many (this is emphasis) times to report the matter, but in vain. I am now tired and need to blacklist Telkom to be downgraded. The technical know how is very poor. Can someone act now or should a service delivery protest be organized?