NO 500MB NO SERVICE NO CALL CENTER

I upgraded my SIM to LTE as per the continuous adverti*****t every time I tried to make a call and it clearly advertised that I will get 500mb of free data if I upgrade my SIM and to try and get rid of the nuisance of the woman telling me to upgrade every time I make a call, it has been a week and still no data. I have tried phoning the useless call centre but I can honestly say that this has become the worst call centre in the country as I have only managed to speak to a consultant ONCE in the last 6 months and in total I`ve stayed on the line for an accumulated time of almost 4 hours.... You tell me if I should be a happy client?