how does a seller in china give an exception to ship to Canada

[jupiter51]

I want to purchase from a seller in china but their lot says they don't ship to Canada. When I asked them for an exception (I purchased from them a short while ago and I know they do ship to Canada) they obviously don't know how to do it but they insist they do ship to Canada. Any body know what I can tell them to fix the problem?

[nubian_treasures]

The seller would have to place you on their blocked bidders exemption list.