Poor service, bald illegal tyres on vehicle and no drop off details

There was no courtesy bus on the day of our arrival and I got a taxi to the hire car base. The attendant asked me did I get a receipt and when I hadn't, did not reimburse me for the fare.The car tyres were bald on the front outside edges. I showed this to the booking attendant. He said there was no other vehicles and they were ok. He then marked them on the condition report. When I lost my key (and later found) in Donegal - they said the spare key was in Liverpool??? When I returned the car - I later found out it was a different location. The attendant said the tyres would be replaced immediately. EasiRent hired me a car that was both dangerous and unroadworthy