Indiana Code Title 24. Trade Regulation § 24-5-10-8

(1) the subject of the consumer transaction has a cash sales price of at least twenty-five dollars ($25);  and

(2) the consumer gives the supplier a written notice that meets the requirements of 16 C.F.R. 429.1(a) and (b).

(1) It must be given before midnight of the third business day after the later of the date:

(2) It must express in any form the consumer's intention to cancel the consumer transaction.

(3) It must be delivered in person or sent by mail or other device to the address given in the supplier's notice required by section 9 of this chapter or to the address of the supplier last known to the consumer if such notice was not given.