Bad service

I app**** for to assist by installing fiber it was around December I struggled to get proper till I get the third consultant who help me and I made the payment they never came to install the fiber and I requested for cancelation on the 10 of January I submitted all the documents but even today I have not received my refund when I ask about it they keep on saying it will be transferred and lastly they said payment will be done on the 15th March 2024 even today nothing has happen