Hi Katherine, the 24 Hour Contact Pad is not actually a Dogtra product. Its manufactured by CJE Products and resold by many dealers an manufactures so we dont make pamphlets or any other marketing or instructions besides what comes in the bag.
However, im not exactly sure what you mean by "no customer support" for this item. It's only the Pad and 2 washers and nuts and it replaces the contact points. You just unscrew the contact points with the provided Contact Points tool and replace them with the Pad. Anyone over here can explain this to you.