I selected keep. Was told by EE on the phone to do that too.
I did accidentally though when I was pairing on the S4 add an additional line, but EE customer service were excellent and got it removed.
All in all a great service from them on the phone, really helpful and actually called me back to check all was still fine.
Thanks gents, will select "keep". Assume I'll then need to ring them with the new EID but that's not a big hassle.Its confusing as for my S3, Apple told me to remove the plan and EE told me to keep it. I removed it and when I set up my S4, it set up a new plan and EE had to remove my old account so make a note to keep it in future.
Edit: yep, quick call to give them the EID and all set up pretty much instantaneously. Shout out to EE customer services, they do seem to have things pretty well sorted for Apple Watch users this year.
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