All sales of spirituous liquor are final except defective products may be exchanged or refunded, and an agency liquor store may permit the return of a bottle of spirits from a consumer if the bottle has not been opened or tampered with and is accompanied by a sales receipt that shows the bottle of spirits was purchased within the last 10 days from that agency liquor store.
18- 553 C.M.R. ch. 140, § 13