advice please

2004nsnazir

im a student.im currently on o2 and im toppping up £10 a month.i want to get a better deal elsewer.at the moment they take 7.50 and i get unlimited texts and 2.50 i use for miss calls
i would want more than 500 texts unlimited would be good
a little bit of minutes and i do need internet on my phone.i want to pay a maximum of £10 because i cant afford to spend more.also are giff gaff and talk talk good relaible network providers?iv never heard of them before.
thanks
i really need advice

grumbler

giffgaff use O2 network
Talkmobile use Vodafone

Also have a look at chitter-chatter (t-mobile) where for 12x£10 you can get 600m+500t+500Mb/Unltd

Having said that, my son is a student too and, like me, doesn't mind working a little to get everything for free on a deal like this one (just one of many similar).