Opodo complaint: Car hire

So booked a car with opodo , 1st booking was 2 hours after I booked it so set off with the card I used to book , on the way there it still not been ed and it was urgent as needed a car, anyway rang the branch and it went through to a different branch who told me bolton branch was closed on Wednesday, so I was online chat and the person booked another with green motion as I’d already set off I asked what was the deposit to be told that it was £1200 which the other was £200 I rang green motion and asked could I use another card what I booked with to be told no so I didnt have available funds for deposit and takes 2 days transfer, I also contacted opodo and cancelled online form , anyway they are now saying they arent refunding me and when I tell them about me cancelling with both companies plus orginally it was their fault for booking 1st with a company which wasnt open . They just wont listen to reason,