Mr. Bob, it is very important that you know your motorhome and how it should be towed. Don't expect Good Sam's or CoachNet to automatically know what equipment that you need.
I just attended a 'Know your Prevost' class and part of it was knowing what type of equipment to request. The person that you call may know nothing about towing a RV. But, the number one rule is to 'never be towed if at all possible'. A roadside repair is the best way to go (not always a choice, I know).
The 'tow person' at our seminar told us to talk to the tow company directly that your 'roadside assistance company provides'. It could be that they are clueless too.
In our situation, we cannot be towed on a flatbed and not lifted from the rear. We can only be towed from the front (unless major damage from an accident). We need to tell the tow truck driver that we are 84 inches from the front bumper to the front hub on the steering tires. We can only be lifted from the tires or the eyelet's at the front axle.
The rear drivetrain must be disconnected, either partially or fully depending on the distance of the tow. Know your weights too.
MM.