father problems serious advice please

im going to be an adult he has no right to open my letters without my permission

Are you male or female?
Do you live alone with your father? You don't mention any other family members.
Is there a special family situation, that could be the reason for this "control freak behaviour"?

You're worried he's going to open the phone bill or generally your letters? You said the contract is under his name, therefore the bills are going to be addressed to him and he's responsible to pay for it, not you. So if your gripe is with him opening up a bill i'd say the letter's addressed to him - so legally you have no right to open up the letter and how do you intend to pay the bill under his name if he's not supposed to know you have a phone? Unless i just missed something and he knows about your phone and how you're paying for it

no i have a mother and 2 brothers ...they are very traditional people ...they have stupid cultural values and just want me to visit all the guests that come and well they are so controlling my mother always follows fathers stuff or words to put it better so they just team up and be posessive

He has no right to open them regardless. Basically I would tell my parents to sod off if they did that to me. But obviously your situation is different. Your father seems to be overly possessive. Has he always been like this? or just since you got closer to becoming an adult.

It gets to the point where some of the things he does are illegal. end of story. It is an offence to open another person mail, or to listen to their phone calls. I think you need to talk to him, unless ofcourse you feel he could get violent or somthing.

Are you going to university? Maybe you should get away for a while, find some space.

i am paying for the bills and ive always been paying for my pay as u go phone it was far too expensive and the people at the shop said it has to be under a guardians ...im paying by direct debit...its set up in my name the direct debit but the contract is under his name ...if it doesnt make sense ask again

It makes sense. Legally though, if you can't make a payment for whatever reason it's not you that's liable to pay for it. It's the person who's name is on the contract. All the bills are going to come addressed to the contract holder and if you open them you're actually acting illegally as it's illegal to tamper with someone else's post. So on the phone side of things you've got no argument. But if post is addressed to you and people are tampering with it then you have a right to be upset.