There really isn't any customer
There really isn't any customer support. One of my carriage bolts / wing knob nuts was miss threaded so I reached out to customer support to purchase a replacement. I was told "we do not have replacement parts available for the majority of Tuffy products", and "the only option for obtaining a functional unit it so purchase a new product". They did say that if I provided the item part numbers they will look into their inventory to see if they can find it. Unfortunately, there were no part numbers on my instruction sheet, only part names, which I used in my request to them.