o2 have changed the minimum top up to £10 now @anka1918
All that means is that you will have to top up every other month instead of every month (assuming you don't use any of your credit for things outside your allowance).
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
