As far as I know, I have done nothing offensive.
Sadly, even faced with the comment I have quoted, I cannot think of a single offensive thing I have done. You suggested I might have a reason not to trust you, but I am quite straightforward and brutally honest, if I did not trust you, I would tell you that.
EDIT:
I doubt it.
http://www.amazon.co.uk/gp/product/B0079JZ4O2?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00