Uber Eats Stole my money

WHAT ABSOLUTE **** SERVICE- made an order had a voucher then got charge the full amount without the voucher and store discount then next day to say what the issue is and be told sorry you used the voucher even after showing them shop receipt and bank statement to proof was charge full amount then to never get a reply and be ignored to be finally told sorry we closing the case and sorry it wasn't the outcome I wanted - uhm Uber eats over charged me I just want my money back