Update for anyone who cares.
Went is the shop and played holy hell. After twenty minutes of them telling me there's nothing wrong. I told them to use my phone after 6 attempts of phoning there own helpline it finally worked. I think my words where along the line of 'Now tell me there's nothing wrong I will beat you with the phone you cnut'. They've gave me a new number which has pissed me of as iv had that number coming up 8 years. The technical guy on the phone said it might be an immersion problem with the number.... I'm pretty sure he's making stuff up. Anyway my new number changes over on Tuesday. Thursday if its still happening I'm cancelling my contract. The way they talked to me in the shop if there wasn't kids there I think id of hit him. He was determined my phone was 100% fine even though it wouldn't work for him 5 times... tool!