Can I get my old number on my new phone? (Details)?

Basically I got a iPhone on contract(O2) so I'm paying for the phone and the sim monthly. But I wanted a premium number instead of those ridiculous automated ones you get usually. So I payed 40 quid for a premium number which I chose myself. Now here's the thing, I'm getting a different iPhone and different contract now, and I want to take my old O2 sim number (the premium one which I bought for extra money) over to my new Iphone and new contract which is on a different network (giffgaff) I can do this right? They can't say I can't because the number is locked to the O2 contract right? Because I bought it extra? So I deserve the right to move it where I want? Maybe if it was just automated fair enough but it's not? Understand?

Will my parents be notified if I create another Apple account through my IPhone?

So I recently got an IPhone and my mom setup an account for me with parent controls. Now I know I shouldn t really attempt to go off and be bad and get myself into trouble but I'm kinda desperate lol. So the story is is that I'm trying to message my friend (who I'm not allowed to talk to) on instagram and unfortunately I'm not allowed to have Instagram so I can't do that and the website also doesn't provide a form of messaging. Anyway I was just wondering if anyone has any info on this, like will Apple send a notification that someone's trying to setup another Apple account or you know something of that sort.

How to reset my iphone?

So i'm selling my old iphone 5 to a friend but i can't sign out of apple id as i have forgotten the password does putting it into recovery mode work?

Why does my iPhone act weird when I turn airplane mode off?

I use airplane mode all the time (To kill dangerous radiation), but when I'm home alone and my parents need to reach me, I shut it off. My phone sometimes starts acting weird when I do that. It's an iPhone 6s, and about 1 year old. Is it the airplane mode, or is it the sudden radiation messing with the technology? (Parts of my body sometimes start randomly hurting too - Adds to the fact that radiation in our daily life is not good at all.

I put my Iphone SE in the washing machine! FLASHING LIGHT

Silly me! It won't turn on nor off and the light is stuck on flashing it an eary yellow sometimes white! What sould i do! Aslo its really hot, not bothered about reviving it just want to know if it going to explode or how to get it off?