Tried to add new name servers but get error "Domains must be in an eligible status.
I've since tried calling the UK support number for the UK but it doesn't work which tells me everything about Godaddy leaving customers in the (censored)
Welcome to the Community!
Nameservers can't be updated on a domain if it is in the middle of processing another action. That could be a renewal, locking/unlocking the status, ICANN verification - or any other domain-centered action you have requested in the Domain Control Center. If you are still not able to make your changes, you are welcome to call any of the numbers available in the signature below.