Yeah, chat will fix it eventually but the rule is a total pain.
I can't believe 4 is the limit. Lots of folk must be easily averaging 4+ devices these days at home - eg we've got a nowtv stick, 2 smart tvs, multiple phones, 2 ipads, the xbox and a few laptops in the house.
I missed the start of the football waiting on the clowns on chat releasing mine yesterday. I'd had a problem watching on the xbox so they told me to try using the laptop next time - removed the xbox only to find that I couldnt add the laptop because I'd already made a change. I got my limit reset but only after theyd given me a lecture on the rules / 4 limit.
Hope you got sorted.