Frustrating experience!

Let me start off by saying, Ronnie in the store has done his utmost to assist. However the story has gone beyond a joke and ready to return the handset and cancel the contract. Coming up for 3 weeks and yet to successfully make a call.<br> <br> 1. Ported from Virgin Mobile due to frustration experienced.<br> 2. Received faulty sim card, this i understand can happen, took a week to resolve, eventually a trip back to the store<br> 3. Was left four days without been able to receive or make a call due to faulty SIM.<br> 4. Have made numerous calls to the Carnival Store to get this resolved, call now had to be escalated with head office. Still no joy<br> 5. Attempted to contact Autopage support to resolve, still no further, in fact one step backwards as now CLI is disabled. Call centre agent confirmed this is now resolved, It is not.<br> <br> Please can i get this resolved or can i return the handset and cancel the contract.