I'm in the U.S. and recently purchased a stamp online from a stamp firm in Montreal for about $450.
The stamp is a 238 US Columbian 15c, mnh that came with a 2022 PSAG cert, graded 85 with no faults mentioned.
Upon receipt of the item, it had a considerable amount of gum bends/wrinkles. I understand that this issue can have some gum bends and such, but I was shocked that there was no mention of this on the certificate. Pic attached.
I asked to return for a refund, which the seller had no problem with. It cost about $18 to mail the item back via UPS in a rigid envelope, about 6x8 in size, around 3oz. Dropped it off a couple days ago and today I get notification from UPS that I have to pay an import fee of $46 CAD before they will deliver.
Is this right? I put on the content description that it was a stamp being returned and I even had printed in the envelope the e-mail from seller and info on the transaction. Anyone run into this? Can I dispute?

