hello, I called up o2 to upgrade my iphone 3g t oa 3gs. I paid off the £175 they wanted to end my current contract early and go to buy the new 3gs and ask for the unlimited text bolt on and they told me they cannot do it. I sent 1666 texts last month. there is no way i can go back down to 500 and now o2 will not give me my £175 back. I really want the new phone but cannot live without the unlimited texts. Anyone have any ideas what i can do?