Every contract for dance studio lessons and other services shall provide:
"Notice to Customer
Do not sign this contract if any of the spaces intended for the agreed terms to the extent of then available information are left blank. You are entitled to a copy of this contract at the time you sign it.
You may cancel this contract within fifteen days of the time you receive a copy by written notice to the dance studio by registered mail return receipt requested at the address specified in the contract.
If you cancel the contract in the fifteen-day period, you are entitled to a refund of your money less payment for dance lessons or services received before cancellation. Refunds must be made within ten days, not including Sundays and holidays of receipt of the cancellation notice by the studio."
A.R.S. § 44-1744