My consultant says she likes people to come once a month but you have to go once every 8 weeks. Sorry but I don't know what happens if you exceed this and then want to go back and don't have any weight to lose.
if you were in target range last time you weighed and are now if you go back then its fine....nothing to pay and your card/online etc will become active again still with all your details there you just pick up as you left off.
i speak from experience as ive not gone for 6 months before.
you are a target member for life which is one of the fab things i love about sw.
even if you returned and were well out of target range,you'd still get your weeks 'grace' too before you start paying.
i also found i need group and the online access too.....i enjoy it and it motivates me.....good luck x