Proton just offered me a wallet access free too. I have never paid them for their service. Anyone with a free account can apply for wallet access which is what I did and after a few weeks or less its come through. Checking it out first before recommending anyone else signs up though! It gives access to buying Bitcoin through Banxa - Im trying out that process to see how smooth and cost effective it is. Certainly seems like it may be a good idea to link a wallet to a secure email account...but time will tell.