Sorry @mswan & @scoobydoo10uk2000, I realise I've been absolutely terrible at giving feedback (known this for a while!) and when someone writes "hoping this will happen for me!" you really want to know if it did or not, well I would and I always wonder about the outcome if I read it on another post!
So, to get to the point actually it didn't work for me - Orange said I had a problem with my EMI... no IME(?) number and to phone Samsung. Samsung said "That'll be $20 thank you" (not sure where they were going to work on it - would have to be sent off). Decided to not go down that route - old phone: so sorted it myself with inspiration from yanco's post re 02 sims and unlocked it for free via moneysavingexpert.com. Have let him know! It worked ok... couldn't get internet but that's not a worry for me.
So, thank you.
Hope you've had a good day - here's a sunrise for the morning, incase it's raining again!
Can't say I've ever been on ebay @isabel1066; friends say it's great but I'm a bit old fashioned - like to go to the shops! Thanks for the advice should I change my mind. I think Orange may have unlocked mine for free had it not had the IMEI(?) problem but it worked ok for me. To be honest, I only have a mobile for emergencies (prefer the land-line) and am happy with a new one I picked up for £4.99, just texts and calls... perfect - and after I'd used the T-mobile bundle, I just put in a new sim and it changed - no problem