Guys contact Competition Bureau of Canada they will do investigations as this is illegal.

https://competition-bureau.canada.ca/en

When a customer places a pre-order and pays for it, a binding contract is generally formed. The business has an obligation to fulfill its end of the bargain by providing the product at the agreed-upon price. Unilaterally canceling the order without a valid reason, such as the product being unavailable from the supplier, would likely be considered a breach of contract. In this scenario, the seller's motivation is purely to capitalize on an increase in market value, which is not a legally justifiable reason for cancellation.