To benefit from this promo, you need to be a subscriber to What’s Up mobile telephony services (prepaid and cost-control). Under the terms and conditions of the "10€ Gift for registering with payzy for What's Up subscribers" promo, you will receive the 1000 Coins reward, which correspond to 10€, if the mobile number you register with on the payzy app belongs to What’s Up (prepaid or cost-control). If your number is NOT a What’s Up number, you CANNOT benefit from the promo.