Confused about GS Roadside assistance membership

GS ERS did not pay for my tire when I had to have a new one on my fifth-wheel. I had to pay upfront for a tire and GS supplier delivered the tire along with providing the service of putting it on the fifth-wheel. I did not have their Tire plan/road hazard. Only the ERS. Also, on a motorhome, I had to have a new tire and the same thing happened. I paid up front, GS supplier brought the tire, mounted it on the wheel and installed it on the motorhome. Again, the labor was free, I paid for the tire.