OnTimeDigital.com , Mega Wholesale Brooklyn Mega Wholesale Charged my Visa Gift Card $100 when they said they don't accept Visa Gift cards Internet, Internet

I ordered a camera from Supreme Camera Electronics & Accessories trying to use a Visa gift card. When I had problems with the transaction on line I called the company and found out the advertised price on the internet only included a temporary battery and the salesman tried to upsell me. When I told him I could get it cheaper somewhere else he said he'd match their price and throw in free shipping. When i proceeded to continue the transaction he said they don't accept Visa gift cards and I told him to cancel everything. He still kept trying to sell me. $100 was charged to my Visa gift card even though they don't accept them and when I called back I was put on hold & transferred to a girl who told me it takes a couple of hours to credit it back. It is now 24 hours later and I still don't have a credit.