Paddy if it doesn't work, I had the same thing with Vodafone and rang the CS department and said a phone with no signal at home is useless to me.
They made me jump through a few hoops, signal boosters and that shit (they funded it) but after ringing back again when it obviously didn't work (the booster they told me to get from ebay!!!!) the operator laughed at the stupidity of his own team and cancelled the contract.
Perseverance is key
