Quidco have added a new option for o2 SIM ONLY
£125 will be credited once you take out the sim only tarrif at £29.38 a month
you will get
3200 txts (more or less unlimited you wont use 3200 in 1 month.)
plus a free bolt on.
Works out about 4 months FREE.http://www.quidco.co.ukhttp://shop.o2.co.uk/simplicity-12
Takes 2 months to get your quidco