I think many companies consider the web, ebay and paypal to be "secondary channels", their distribution networks are the primary channels. In some cases they are selling seconds rather than prime quality through these channels. So buying through their regular distribution channels is often what companies prefer, and how their business is designed to operate. The internet may be a second rate outlet for them.
I sell and ship things through PayPal. The problem is, when the customer raises a dispute through PayPal, I can no longer ship them anything via PayPal - the options are locked out. The only option is to refund the order, and much of the time that's not very helpful. If the customer releases the dispute so that I can ship the product they cannot file another dispute on that transaction later if it doesn't get resolved.
So the PayPal dispute option is best as a last resort, when communications with the vendor has already reached impasse or failure.
I sell and ship things through PayPal. The problem is, when the customer raises a dispute through PayPal, I can no longer ship them anything via PayPal - the options are locked out. The only option is to refund the order, and much of the time that's not very helpful. If the customer releases the dispute so that I can ship the product they cannot file another dispute on that transaction later if it doesn't get resolved.
So the PayPal dispute option is best as a last resort, when communications with the vendor has already reached impasse or failure.