Pingza is giving away free £10 Sainsbury's vouchers to spend on wine! It's really easy to do, just download their amazing app, register and start referring your friends. You get 50 points just for joining and then another 50 for each friend you refer. Collect 1000 points and get yourself a free £10 supermarket e-voucher. So get sharing with all your friends, your social and any FB groups you maybe a member of. Hopefully it won't take you too long.