something like this
Welcome Vouchers After Customer Registration or Order
This module is great marketing tool for your online business. You can send vouchers to your customers automatically after they register or create an order. They will receive mail with individual voucher code and other informations about discount.
addons.prestashop.com
Prestashop Signup Discount (Welcome Voucher) Module, Addons - Prestashoppe
Prestashop Signup Discount (Welcome Voucher) is great marketing tool for your online business. Send the automatic voucher code on customer email when new customers register or signup on your store.
prestashoppe.com