If you need to stop your membership, all you need to do is cancel the direct debit with your bank. We'd also appreciate it very much if you'd drop us an email just letting us know that you've done this, and if appropriate, the reason for your cancellation.
Absolutely. We practise the same material at each rehearsal in a week. Once you've joined up as a member, you can come as often as you like. Many of our members come more than once a week.