The "Must Dance Studio" didn't give me any service for the coupon I've purchases. I two times contacted them; once two months ago by phone to ask my classes to be in July, and second time I went there and they told me the would call me for setting classes, but they didn't. I left my Groupon coupon there and they redeemed it without contacting me. I just want to know isn't this cheating?! I contacted Groupon customer service and ask them to reimburse me while I didn't receive any service from this partner, they told me they cannot do anything in this regard! Such a shame!