BIGGEST SCAM EVER!!! Like all the other reviews that I am now seeing, too little, too late, I was scammed as well. Had this QR code printed on all my business cards just for my “free QR code” to be de-activated. So now I either buy new business cards (which won’t be here in time for my trade show in 3 days), or I give customers a business card with a bad QR code. Worst situation to be in and this should be the LAST thing I am worrying about to prepare for my big night. GARBAGE!