You pay the original contract which is £18 and every quarter he sends you a cheque for £50 which reduces the line rental to £8. Those figures are just quotes as i am crap at arithmetic. He also sorts out all the cashback for you, you dont have to send any bills off etc as thats what the high street companies take advantage off as people forget to send their bills or send late etc.
I think as a Dealer he gets a big bonus off the networks and passes the savings back to you and he pockets the difference. My current sim only deal is £3 a month, but that was a special offer at the time.
He is an affiliate of
www.e2save.com & the Carphone warehouse. His deals that come up from time to time are so good that no one believes me.
It was really big 4-5 years ago but alot of Dodgy Indians flooded the market took loads of money and stopped giving cashback before the full time of the contract and shut their shops.