Distance Selling Regulations 2000
These regulations apply to sales to private individuals (rather than business customers) who purchase by means of one of ebay’s ‘Buy it Now’ formats, and specify that you have a ‘cooling-off’ period of 7 working days from receipt of the goods during which time you must notify me in writing, by email or post, of your wish to cancel. 

This is not the same as having 7-days free approval.
 You have a ‘duty of care’ for the goods and they must be returned to me in a brand new saleable condition. This means they must be in the original packaging, with all original inserts, instructions, etc. Once you have used, assembled inserted print cartridges etc or mounted, cut or manipulated  the item in ANY way you will be deemed to have accepted it and this option will no longer apply. 

There must be no additional writing or labels on the outside and you should carefully tape up and/or rewrap as necessary to protect the item on its way back to me. 
You MUST have my RETURN AUTHORISATION NUMBER before you send the goods back, and you are responsible for the cost of return postage/carriage. 

For your own protection, you should make sure that you are using an insured, trackable service to return the goods as I will not be responsible for loss or transit damage that is evident, and reported to the carrier, when the package arrives. I will refund the full Buy it Now price on undamaged items as specified above. 
(I can NOT refund postage as this has been paid out on your behalf 
to a third party ie Royal Mail or a Carrier Company)

The receipt of your positive feedback on ebay will indicate that you have accepted, and intend to keep, the goods.
4. Faulty goods 
Whilst I try to offer only top quality items, there may be occasions when the item you receive is faulty in some way. In the case of minor damage which I have known about in advance this should always have been described in the original item listing. Please refer back to that before raising your complaint with me. 

In all other cases you should contact me first to advise me of the problem. Keep all packaging and refer to the paragraph above for more hints. I will issue a RETURN AUTHORISATION NUMBER and make the necessary arrangements, or (at my discretion) provide a replacement if available. 

In some cases I may ask you to return the item yourself by a specified method Please do not return goods without having contacted me first! 

For your own protection, you should make sure that you are using an insured, trackable service to return the goods as I will not be