UberEats debits money and keep on showing amount outstanding

What a hassle to do business with this company which is only available online. I ordered food and when I was suppose to click next for payment the amount was already taken off my bank account without any evidence send that this happened. When clicking the help option they rep**** that the amount was still outstanding although my bank statement clearly shows the amount was debited. The help option was no longer available and there was no other way of contacting them. To avoid problems, I bought UberEats vouchers and loaded them onto the app but it still shows amount outstanding after 2 months. So I paid twice and the amount still shows outstanding and nobody to contact or help. How terrible this is!