Buff Bunny Collection Tights

I purchased these tights 2 months ago in a Small and unfortunately they do not fit :(. I would like to trade them for either a $50 pre-paid visa and/or a $50 gift card to lululemon. I'm pretty open to other trades depending on the value because they did cost me a bit to get them shipped over to Canada. All the tags are attached and I also have the plastic that cover that came with the leggings.