Toro Zero turn mowers review: Ongoing problems and zero customer service

I have a Toro Zero turn mower. I always keep up with the service and its stored inside in my workshop. When mowing it takes about 20 minutes then the PTO disengages. I have had it in the shop 5 times for this issue. I called Toro customer service to get some technical assistance, and they told me "Tech support is not for the customer, but they only talk to dealers". I said are you kidding me? The people who buy your products pa their money and that is how Toro treats their customers? I then listed companies Mercedes, Honda, Volvo, Ford, Chrysler, Toyota, John Deere, Cub Cadet, International, and several appliance companies and said They all have tech support to the customers, but Toro is too good to talk to their customers and support them? I have NEVER seen anything like this. What a poor uncaring company