Well, neither of those examples are concrete evidence of cohabitation. Do you have lease docs with both names? Joint utility bills? Letter from landlord/neighbour/family? Things mailed to both of you with same address? Anything showing you actually live together from at least a year ago until now.
I have 2018 notice of assessment for my wife for the address we were in Toronto.. joint bank account statements with same address .. since we moved to vancouver we have lease document effective july 2019.. and we have bc health card mailed out to our address with letter .. etc .. since all the utilities were included we never had any bills on my name either ( only land lord) ..i submitted a letter from cousin who is a citizen of canada.. as proof of relationship..