So I'd like to make it clear that there are only 3 ways of getting a lesson from me without paying for it:

1.  Book a batch of 10 lessons

If you pay for 10 lessons in advance, you get a 10% discount on the standard lesson price.  So you're getting 10 lessons for the price of 9, and one free at the end of the batch.

2.  Recommend a friend

If you recommend a friend to have lessons with me, and that friend and you have both paid for at least 5 lessons, you'll get a free lesson as a thank-you.  There's no limit to the number of friend recommendations you can make, as long as the 5 lessons are taken each time.

3.  Gift voucher

If you can persuade someone to buy you a gift voucher for a lesson, then you get to have a lesson from me without paying for it yourself.

Other than that, as you know from my Terms and Conditions, all time booked must be paid for.