I would like to donate my 3 piece suite to a charity but they have refused it on the grounds that not all items have the fire label. It seems that on the settee and chair the labels have become detached and for this reason it is not legal.  I am able to sell it privately or could I replace the labels myself.  It has the item number and date of purchase plus fire resistant details.  The suite is only 9 years old and in perfect reasonable condition manufactured for Harvey's.

The fire labels have to be "part of the fabric" (sewn in when the item was made) Other wise anyone could add a "fire label" to anything.

I would suggest you advertise it privately as "sold as seen" and mention it has no fire labels. 

Could you take a photo of the labels that are fitted, there are three labels 1. Display label, not required when the furniture has left the showroom. 2. Full permanent label or 3. the short permanent label, either, proves the furniture meets the regulations.

Fire safety of furniture and furnishings in the home - A Guide to the UK Regulations Page 11