Green Motion Fuel charges - Ridiculously Overcharged

Experience was good from time of collection to return of vehicle. I did 235kms and was charged for 38.2 litres of fuel amounting to R819.41, which in my opinion is a total ripoff. Contacted their accounts department on Monday 2 June 2025, they realized it's not possible and promised to refund. Today 7 June 2025, still haven't received a refund. Totally disappointed 😞