We purchased a Spacetalk watch via sky.
currently we are still paying for the watch. We also had a 4g sim which was free, part of the deal.
ive just found that we are now paying £10 for the sim, while still paying for the watch. I can't find the original contract, but seems odd that the sim has changed before the watch is out of contract.
SIM contracts are only 12 months, regardless of the length of the device plan.