Yes, I sell links bracelets, standard and shorter than standard lengths have one price, but where I need to extend by adding links, I am charging more. And they can send it back for resizing. So here, I am telling them that I will charge more if they return for extending, but will not refund if removing links form a bracelet that may have cost more than the standard.
Nothing in my eyes. I want to make sure I am legal: Just in case I did not explain myself properly, here is an example:
A standard length bracelet is 20 cm, cost £20.00.
The same in 21 cm cost £25.00
A buyer pay £25.00 for the 21 cm length and return it to remove links to 20 cm length. So now he have a bracelet that cost only £20.00. But I do not want to refund the £5.00.
That could be consider to be a replacement to a cheaper item, not a resizing by the eyes of the law.
So, is that legal?