Tina:
Thanks for sharing your experiences.
As you'll see from the many posts on this site, it is very risky to purchase anything at all from Crappy Tire, including lawn mowers.
Many of the complaints we see are about the "repair only" return policy for lawn mowers, especailly gasoline-powered ones, and for defective "Yard Works" or "Simoniz" products.
Regarding parts, you might be interested in this thread:
https://www.canadiantiresucks.net/g...e-incorrect-used-non-returnable-no-stock.html
Keep in mind, the charger you have might well be OK, and it could quite possibly be the two batteries themselves that are defective. If you could find someone with a working battery, you could try that in your mower, and maybe try charging it with your charger, just to confirm. You could also try charging your batteries with someone else's known-good charger.
Thank you for helping spread the word about terrible Canadian Tire products, poor customer service, and lack of replacement parts.