If a salesman came to my home and..............? -

sold me a chair, then a day later i found out that he over charged me and cancelled the transaction, then on the 3rd day I found out that the salesman s licence had expired on the day he sold me the chair. Is the chair mine for free? or can I still barder with him to lower his price?

You need to deal with the company.

Whether or not he had a license is irrelevant. You bought it then you cancelled, remember? The chair has to be returned...and it s BARTER.