savemore.com Bought gift card barnes & noble never sent. Wont respond to call or emails for refund. DALLAS, Texas

Early Dec. I ordered a 25$ gift card for $15. they charged my card immediately. I redeemed the code the next day with the promise the gift card was in the mail. It never arrived. I went to their facebook page and asked where it was. Comment was deleted within a few seconds. I began reading comments under the specific deals and there are thousands of people who were also scammed.  Many of the negative comments have been since removed by them.  Whoever has this site was initally responding to posts telling people to email them so they can look into the issues.  I've emailed mulitiple times and cannot get a response.  I'm having difficulty with a charge back since I used a debit not a credit card.