Phone upgrading

Hi iam new at this web site and I really like what i see thanks Guy and Girls iv got one wish I'd like to upgrade to a s9 plus dual sim phone is it possible here? iam for Canada Alberta could someone point me the right direction or prefer me to someone thanks willing to pay reasonably priced around 200 To 300 anyone..

Just buy it in a store not worth the trouble

samsung is not worth. messing with