Iowa Code § 552.7: Buyer’s cancellation.

If a buyer cancels a physical exercise club contract pursuant to the three-day cancellation provision, the physical exercise club shall send the buyer a written confirmation of cancellation, together with the buyer’s refund and any negotiable instruments executed by the buyer, within forty-five days after receipt by the physical exercise club of the buyer’s cancellation notice. If the physical exercise club fails to send the written confirmation to the buyer within forty-five days after receiving a timely cancellation, the physical exercise club is deemed to have accepted the cancellation.