“I think you’ve got that backwards - the place of supply would be Ontario, so Ontario HST would be charged.”
Actually, not necessarily… It is unlikely that the BC consumer picked up the item in Ontario.
A brief overview can be obtained by reading guide RC4022 (around page 41 or so)
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BC:
“You must register to collect and remit PST if you are located outside BC but within Canada and regularly do all of the following: Sell taxable goods to customers in BC” etc, etc, etc
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Proper evaluation of sales contracts and operations should be undertaken by the company’s lawyer and the company’s accountant in respect of each Province sold to.
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“I called the tax department in BC and was told that it is not necessary to get a PST number and file a PST return if sales are below $10,000.00.”
IMHO, extremely unwise to try to get answers to legal questions over the telephone.
That telephone advice may very well not be correct of the seller does not have a business presence in BC.