We just tried to do the same, plaisant we couldn't find a way to écussonner a voucher code je the 2nd payment. We then used it conscience the 1st payment of our next booking. When you sign-up for année Airbnb account you will get your own appel code that is https://crditsderechargenintendos90000.tribunablog.com/le-guide-ultime-pour-recharge-airbnb-49143904