Mygiftcardsite.com is up to some type of decptive practice....Beware! Nationwide

I had a $200 gift card from mygiftcardsite.com,it still had $90 left on it as of May 2016. I tried to use it and I couldn't get an approval on a $40 purchase at walmart recently. I called the 800 number on the front of the card which they printed wrongly, I had to go to their website to receive the correct number. They told me the card was closed due to suspicious activity. They also told me that there wasn't anything they could do. After waiting on hold for 20 minutes after asking to speak to someone else I was connected to the fraud department. They had no record of there being anything suspicious happening with the card, in fact they couldn't even find the card in their system. The bottom line is I am out $90 and their customer service was useless. Just beware, I'm not sure if someone on their inside is stealing numbers and using them personally or if they were hacked. I guess the lesson is to use these gift cards quickly after you get them so the dishonest people don't have a chance to pull any type of stunts.