New to all this so please be gentle..
DD is 5. She was desperate to do ballet class for ages, I agreed to sign her up for a local class and asked if she could try a taster session. This was fine and she loved it. The taster session took place just before half term and at the end I had to pay for the whole term upfront, buy the uniform and sign a contract (which I'd not seen before) before leaving the building. It was a bit more pressurised than I'd expected - I'd thought we'd at least be able to go home and pay from there, but there it is.
DD did a few classes and got tired of it. After much cajoling, I agreed that she would finish the term, but not go back the next term. I told the ballet school about this and was told that unless notice is given before the half term point, the full term's fees had to be paid in advance for the next full term 'in lieu of notice' even if DD isn't going back.
The snag being that DD's taster class took place at the half term point, so unless I'd cancelled her attendance for the next term before she tried it out, I would always end up paying for two terms. Of course, I'm embarrassed that I didn't challenge the agreement at the time, and I know it's my "fault" for agreeing it in the first place (as well for not insisting that DD stick to ballet lessons for another half term - dragging her along for the remainder of this one was bad enough).
However, I'm now wondering if these are normal conditions for activities like this one? If so, I don't think we'll be doing any more for a while!