Dollar General

I was sold a dollar general gift card at store # 16309 for $200 and was told I could use it to pay a bill online.. Which was false
I have unused card and receipt and have been trying to get my money out of card for almost a month. I have waited for an hour at store 3 times and another store 1 times and associates can't figure how to help me. I call customer service and they are not taking calls but direct me to fill form out online, which I have done 4 times with no response. I will not shop at a store where nobody knows how to handle a problem when one occurs. And corporate workers don't care to respond or if they have that many problems where they are unable to respond in a month