Bad service

I rented a car for 30 days (so far I have had it for 2 weeks). I was contacted 2 days ago by a Europcar agent to tell me that they need to send the car back to the mainland and that I need to bring it to the next Europcar agency at anytime within the next two days. I found it very strange that Europcar would not offer the service to bring me a new car, but I kindly agreed. Then I arrived at the Europcar office and found out that they were taking a 4 hour lunch break that nobody had mentioned. So I called the Ibiza Town office and they were very rude and said I should wait 2 hours for it to open again or I would have to drive there again the next day. (The office is a 30min drive away). They said if I did not do this, I would have problems. I found this to be extremely rude and waited for 2 hours. Then I received a new car. The next morning the battery of this car was empty and I had to call road assistance. I missed an important meeting because of the car break down. The roadassistance came, recharged the battery and told me that I have to bring the car back to the office (which again is a 30min drive away). So I called Europcar because I do not have time and more money to spend on gas to drive another hour today. I was transferred 5 times to different offices and had to tell the story over and over again until I found a woman who was very kind and told me to stay in line, she would arrange somebody to bring me a new car to my address. But then instead she transferred me back to customer service who were absolutely unhelpful and said they could not do anything for me. I spend 30min on the phone and now I still don't have anybody who will exchange the car for me. I will have to do another 1 hour drive to get a functioning car. I am beyond disappointed by the service provided.