does seller have to list that he charges sales tax

[johnwscooking]

I purchased an item on Ebay then was sent invoice with Tax added in.  there was no mention of sales tax on the item

in the listing. is there anything I can do?

[toby_le_pue]

If this is for the screen guard then read the listing again

and click on the shipping button.

Seller charges sales tax in multiple provinces.