Certified Unlocked Samsung Phones

I'm trying to find a good condition, certified, unlocked Galaxy S9.

I bought my last Galaxy from Factory Direct, but in the meantime they screwed me over with a purchase of another item, and I don't want to give them my business.

Any suggestions on dependable sellers? Shipping from Canada.

Thanks

So it turns out that Mobile Klinik is owned by Telus.

They offer a 1 year warranty, when everyone else only offers a 90 day or 30 day warranty on refurbished/pre owned phones.

Pricing was reasonable.