Didn't Go Anywhere

I had been following this rental car company for a while, thinking I had found a good platform for overseas car rentals. I had rented cars through apps abroad before, but this was the worst service experience I've encountered. I forgot about my reservation on the rental day, and nobody contacted me the entire day. When I finally remembered around the return time and called customer service, they told me to contact the store. The store then told me to contact customer service. Ultimately, neither took responsibility, and they said they had no obligation to remind me about the reservation. This was just a case where I paid but didn't pick up the car. I can't imagine what would happen if there were an accident or collision in a foreign country where I'm unfamiliar with the surroundings. With this kind of problem-solving attitude and approach from the rental company, what could I do? I decided to just consider it a loss and uninstalled the rental app. I advise everyone to use a reliable platform for overseas rentals to avoid finding yourself in a situation with no one to help in case of an emergency.