I was using the app to place an order when I went to hit pay an added tip I hit split and then something happened with my card I had to add another card in order to pay the amount and then it kept splitting the amount so I had to add another card and it kept splitting the amount and I had to add another card and it kept splitting the amount and I cant retrieve the amount that its split to so I ended up going to the restaurant to pay and now those cards are not valid.