I think this is the show I watched...
http://www.bbc.co.uk/consumer/tv_and_radio/wat chdog/reports/consumer_goods/consumer_20071017 .shtml
If you already have been with a company for a number of years, you may find that they will immediately cut your monthly rate in half, provide you with a new phone and more free minutes. They did with me. T-Mobile have made a fortune from me over the years. The majorit of that is in overseas receipt and making of calls. Two years ago, there was a month when my mobile bill was just over �700! Thankfully it has never been that bad since.
But I now pay an extremely low monthly rate and have a broad range of credits available that I seldom exceed.
I also save money by using an internet based group for sending and receiving my overseas text messages...that too saves a packet.
Best of luck
Fr Bill