Purchased new RV several weeks ago with TrailAir Ride coupler. I suspected the air bag had a small leak the day I picked up the RV. I have towed with it one time and had to pump it up before I left the campground. Like a dummy I waited till today to call TrailAir to see if they would ship me one next day air because of another trip starting Thursday. They refused to send me one next day air. Does it say anything about their service? The fault is really mine because I could have called earlier. Apply this to a situation like if I were already on a trip 500 miles from home with a bad air bag??? Think about it!