I still contend if the e-bay seller was decent he would
have accepted the remote back minus some charges.

BUT,

The fact that he didn't, is because as far as the listing
goes, he isn't wrong. He sold a REMOTE. Nothing else.
The fact that it requires software to program it isn't
his problem. I don't believe the seller tried to pass
himself off as a dealer of the product, he is just an
e-bayer that sells a variety of junk. If the software
was included, it would have been in the listing.
I think tiger is going to find himself answering a lot
of questions and wasting a lot of time dealing with this,
it doesn't sound like the seller is going to be very happy
having the charges reversed. And I would guess he will
file all this with both e-bay and paypal. (he has to if
he hopes to get his listing fees back)
You have cost him a sale, postage and now an amount of
his time to deal with this.
He has a right to be annoyed.
tiger should have talked with some of the people that
offered to help him with either programming or getting
him the software, it would have been easier to keep the
remote, after all, in the end you did get a very good
deal on it.
And now your talking about annoying another seller buy
returning the RF kit. Your not going to find yourself
having an easy time buying anything else on e-bay after
all this.