The MudbuM Supply Shack Gift Certificate is redeemed for purchases through the MudbuM Supply Shack website. It is not accepted by any third-party merchant. Gift Certificate value expires 180 days after purchase if not redeemed online. All products and sale items are available for purchase with the MSS Gift Certificate. The MSS Gift Certificate code is required at the time of online checkout. A single gift certificate cannot be split among multiple recipients. The MSS Gift Certificate is purchased for online store credit and cash refunds are not available.