Method or trick with ubereat ?

Does anyone has got a method or something to make infinite account and get infinite 10$ promo code .

Because i maked 2 with 2 different mobile , and on those 2 accounts i put the same card and 2 10$ promo code , it works but then i tried to make 3 more account with 3 other mobiles but can't use the credit card so i need another credit card wich i don't have , maybe some of you have got virtual credit card they can have for free ?