*Expired* Best Buy | Save $50 When You Spend $100 Using Mastercard 5 years ago 4 Comments Coupons UPDATE: this offer is expired now. Right now at Best Buy, you can save $50 instantly when you spend $100 using your Mastercard in stores through 1/27/13. Simply print this coupon and be sure to read the fine print for some exclusions. Share This Post Facebook Comments sheila whitney tried to use this tonight and there is a sign on the front doors saying it was only good yesterday (monday) when i asked they stated corporate changed it very dissapointed Stephanie I also tried to use it tonight and I was told that the coupon was only supposed to be sent to certain people and that it was only supposed to be for yesterday. There was no sign on the door of the Best Buy I went to and so my family and I spent quite a bit of time deciding on our purchases only to find out we couldn’t make them. I had two very disappointed little boys on my hands. Paul Used it yesterday on a TV. I called today because my wife wanted a Kindle. They said it is expired and that the sales associates didn’t get the word. Guess they are closing this loop down for good. 🙁 Tara This coupon is no longer valid despite the 1/27 expiration date. Corporate made a printing mistake the expiration date and are not honoring the coupon.