And at times, I have bought a phone from elsewhere cheaper than from O2, but got them to put it on O2.
Hope you enjoy the Community, welcome.
I have been with O2 for many years, first as a PAYG customer and the last 6 years on contract. I stay with O2 because I get good coverage and good service.
No they are not the cheapest for phones but service and coverage outweigh cost for me.
Sim only for me but I will definitely be looking elsewhere for cheaper deals when my contract ends. O2 gives me decent coverage but I get better with EE and Three, I haven't tried Vodafone however @Mag1
Welcome to the Community @Mag1! 
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Welcome to the Community @AyeAyeAye, love the username 
→ Access for You: Registration - Find out how to register for our Access for You service.
→ Want to chat with other fellow-minded members? Head to our Off-topic section for some interesting chit-chat.
→ Check out our Priority board for tickets & offers updates, and to discuss all things Priority-related!
→ Welcome to O2! - New to O2? Find out all you need to know to get started!
If you'd like to take part, why not register?
@AyeAyeAye Introductions are not mandatory but thanks for dropping in the thread to say hi! Great to have you on the Community. 
→ Access for You: Registration - Find out how to register for our Access for You service.
→ Want to chat with other fellow-minded members? Head to our Off-topic section for some interesting chit-chat.
→ Check out our Priority board for tickets & offers updates, and to discuss all things Priority-related!
→ Welcome to O2! - New to O2? Find out all you need to know to get started!
If you'd like to take part, why not register?
@AyeAyeAye wrote:
Apparently I have to introduce myself here, hi all I’m ayeayeaye, I’m a multi billionaire, bye
Is not mandatory but nice to know you are a multi billionaire 😃
Please accept this as an official begging letter 😂😂
Welcome @AyeAyeAye
So nice to have a multi-millionaire on the forum. I hope you are feeling philanthropic?
