This guarantee extends to the Customer, within thirty (30) days after the date of purchase, a refund of 150% of the difference between a current locally-advertised lower price on a similar make/model tire and the price of a tire purchased from a Firestone Complete Auto Care store. Customer must provide a current local advertisement. This guarantee excludes clearances, closeouts and catalogs. This refund is not to be combined with any other offer or used to reduce outstanding debt.