Printer driver not installing on my macbook - Consumer Complaint for Courts Jamaica Limited Contact

I bought a printer last week at courts in port Antonio. Went home, opened the printer set it up and went about installing the driver onto my computer. I use a macbook pro which is up to date. After many attempts and checking the canon website, there was no driver that was compatible with my laptop. I returned it to the courts store and I am being told that it cannot be returned as I opened the product.