Car rental around Bangkok, returning in Bangkok.

When picking up the car at Don Mueang, I found that the car's rim was damaged, so I had to get a replacement, which took a lot of time. Thankfully, the replacement was a new car with only 1000 kilometers on it. I regretted choosing to return the car in the city; I couldn't find the store at all! Even calling Hertz customer service didn't help, and asking locals didn't work either, which was very frustrating! Fortunately, I had the idea to return the car at Suvarnabhumi Airport. Even though I was more than 2 hours late, they didn't charge me extra, and the service was excellent! The staff kindly told me it was fine to return the car anywhere. They just checked the fuel gauge, and everything was fine.