that is really a bad contract for £25/mo, im paying 30 and get way more than that.

id call tmobile and ask if you can change your tariff as you believe the one your on currently to be bad value for money - just a quick look round tmobiles site found this contract which is more than what you get now but the same price as your paying :

600mins
500Texts
flexible booster included (could be texts or whatever you choose)
unlimited internet Yes
£25.00
18 months