Unlocking iPhone on o2 problem?

I want to leave o2 and therefore need to unlock my iphone to change the provider. In order to do this my phone must have £15 credit on it so that o2 can charge me to unlock the iPhone. My problem is that if i upload £10, my o2 tariff (pay and go go go - 1000 texts, 500mb etc) will take away the credit. How do I solve this?

How to I tell what contract I have?

What contract do I have( I'm a kid btw), I want to see what I have because I wanna know if I'm eligible for a iPhone 4S or even 5.

I want to use the myAt&t app to check(using iPhone 3GS

Iphone 5s now or to wait for the iphone 6?

Hey guys been planning on buying an iphone 5s since it released thing is it comes out here in dubai in november and i wanted to know if rumors are true tht iphone 6 will come nxt year or in 2015 cause apple must launched their new product now anyways wanted to know if i shld buy the 5s now or wait until iphone 6 comes out if those rumors are true

When does Apple iOS 7 come out? - For iPhone (What Time)?

When does iOS 7 come out, like what time? I know iOS 7 will be released on September 18th, but what is the exact time on September 18th it will be released? At midnight, PST time? I live in EST, and I wanna know if I will be able to update iOS 7 in the morning before school.

Recap:
I know iOS 7 comes out September 18
What time on September 18? (PST or EST)
Extra: how long do you think I will take to update to iOS 7? 1 hour? 2?

Thanks so much, if you can answer all questions or at least what time, I will choose you as best answer. Details is appreciated. Thanks so much!

Added (1). Also, will iOS 7 be an Over The Air (OTA) update?

I DROPPED MY IPHONE5 IN THE TOILET?

Well I dropped my iphone 5 in the toilet, I took out right away wiped it dry and it worked for a minute but then completely turned off. I tried to turn on but it didn't work. I put in rice a few minutes ago, will it work? If it does will it work completely like before? And will my data/photos still be there? And how long should I put it in rice? Since I need it for school tomorrow. Answer As soon as possible.

How to turn my iPhone 4 flash LED off?

A couple weeks ago, I was at the beach & I left my phone on the sand and the tide came in and roughly soaked my phone. Now the flash light stays on even when I turn the device off. I've tried everything from leaving it in rice to putting it in the oven at 100 degrees for an hour. The camera doesn't work (front nor back) and it kills my battery. I have no warranty.