No service 5 days now REF SD432665

Wednesday my network has been down 'no service' i called the call center thursday morning who told me to take out sim and put in other phone and then search for cellc network in my settings. Called back as i still had no service and they put me through to technical healpdesk WHO SAID I MUST DO THE SAME THING, Called back and they logged a new query and say they will call back. Friday morning I called technical helpdesk and they said they DONT CALL CLIENTS BACK and said the case has been closedresolved and the note on there was that i had to do the exact same thing with the sim. Now at this point I am beyond angry as its 2 days and no one has done any REAL work to fix this. Saturday morning I call saying its been resloved!!! No one bothered to call to ask me if its working they just close the case, the agent says she can't put me through to technical team because they closed i have to call back Monday!!! Monday morning and guess what the same message and case was sent to wrong department! I am on maternity leave alone at home and need my phone in case I go into labour, I asked to speak to the supervisor who said case can take 48 hours to resoved! I will be taking this further!!