[{shop_url}] 

Hi {firstname} {lastname},

Thanks for your trust. 

You are one of our best customers and as such we want to thank you
for your continued patronage. 

As appreciation for your loyalty, we want to give you a discount of
{amount}% valid on your next order! This offer is valid for {days}
days, so do not waste a moment!

HERE IS YOUR COUPON: {voucher_num}

Enter this code in your shopping cart to get your discount. 

{shop_name} [{shop_url}] powered by
PrestaShop(tm) [http://www.prestashop.com/]