Mr delivery please refund me.

If there was a zero rating I would give them that. Pathetic service and ********. Placed an order on the 1st of May 2020 at 6pm, at 8pm got a message from their stupid app saying “ oops delivery could not take place” Their number always cuts me off and no one answers my email. I want my refund please. Never using their app again. So disgusted!!!!!!!!!!!!!