Phone locked or unlocked?

Susan1942

I have just taken a sim only contract for 12 months with o2 which I am happy with. I intended to buy the phone from them also I want a phone which is unlocked and they were showing a pay as you go for the Motorola G. I told the person I spoke to that I wanted to have an unlocked phone. She said I could buy the phone unlocked but as soon as I put the sim card in the phone would be locked to o2. I was unsure of this so decided to seek an opinion here.
o2 are selling the phone in blue only at £129. I can buy the phone unlocked from John Lewis or Carphone Warehouse at £149 in either grey or gold. I would prefer the phone in Grey but uncertain which retailer I should purchase it from. Is it correct that when I put the o2 sim in the phone it will then become locked to o2. Had I taken a 30 day sim the cost would have been higher. I have always been with o2 and am happy to stay with them.
Advice would be appreciated. Thank you Sue.

DCFC79

If you prefer it in Grey then buy from John Lewis or Carphone Warehouse, its the same price at both. If it were me Id prefer to buy from John Lewis.

AndyPK

yeap John Lewis.

Susan1942

John Lewis are now showing the phone for £169 95 although they were selling it for £149 95 I have filled in a price match form and no doubt will hear from them in the next 24 hrs
They have a 2 year guarantee and I have purchased TV You View box from JL price matched with Richer Sounds. I know from experience that they are a good company to deal with Many thanks Sue