Nice username you've got. It sounds quite familiar. I'll be happy to assist you with correctly linking your accounts.
Have you added the provinces through tax your center? If so, you can add your own custom tax with the specifications of each province. QuickBooks Online makes it easy to add a custom tax. Here's how:
In case you need more info, you can review this helpful article here. The article will share more info on the how the taxes work in QuickBooks. Feel free to ask any questions. I'm here to assist.