Can't switch Editions

I have owned Minecraft PS4 Edition digitally for as long as I can remember (definitely before bedrock update) I have achievements on this version of the game as proof that I definitely did own it, so when bedrock released and I didn't want to play that edition I was told I could switch back to the original PS4 edition through a tab in the menu of bedrock edition. This tab is not there for me and I have no clue why... I have uninstalled and re installed multiple times to no avail so I even went the extra step of buying a used Minecraft PS4 disc to see if that would work and it did not. Is there any way this can be fixed or am I stuck not being able to play the version that I paid for?