Partially item return if not used.

[lamellatrading]

I am a seller. And recently sold over 20 packs of flooring by one lot.

The buyer has installed it and wants to return the part of the flooring that was left (2 packs, not used). 

Am I obligated to accept a return?

[roger_roger_over_and_nowt]

No,not unless you agreed to that BEFORE they bought.