I have got the worst experience of renting a car abroad. Vehicle was not functioning well.

I remained on road for 6 hours on road with my family under heavy rain before getting road assistance from green motion and its associated insurance company who I paid £ 452 for 7 days to have zero excess. Plus £ 150 deposit. The clutch was broken on second day 16th of August and I dropped the car after road assistance towed our vehicle to green motion office. Finally after long long waiting of 6 hours when we reached at green motion office its employee was shouting on me by saying how did you manage to broke the clutch. I was so tired and helpless at that day said to him that I'm driving cars and trains since last 20 years. To summarise I want to get refund £150 deposit and 5 days insurance for zero excess from green motion and 5 days from Axa insurance of easy rent cars. As I used only for 2 days out of 7 days of renting with green motion. I'm not asking any compensation for ruining holidays of 7 people for our entire trip.Thanks