Typically, if you’re only away for a week or two which is the general UK holiday duration, then nothing will happen to your membership. Your monthly fee will be taken on the usual day and you’ll simply be on holiday for a couple of weeks.
Meanwhile, the sessions carry on running.
If, however, your holiday is going to be for an extended period of time, then I am more than happy to suspend your membership. During that period, you will (typically) have a month in which no payment is collected with regard to your membership because you are not able to attend. I’m more than happy to do this for people because it’s not right that you should pay for a service that you are not receiving.
If you are having a long holiday, let me know and I’ll sort it out for you.