Each account is separate by default and has different log in details.
It's the customers choice if they want to merge them or not.
My 4 accounts all have different email address and/or password but I view them all through my "Master" account as they are merged in there.
Blimey...well who knew that? Thanks, I had no idea.
I posted on the assumption that they already had a My O2 account and could simply link the new one.
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