DLC Bug

For some reason when I check my game's installed category I find that all the DLCs have been bought, which leads me to think that I have bought the anniversary version. I am currently in a family plan so my dad might have boughten it before, but even though its likely I have the DLCs downloaded, I only have the extra content like enclave remnants and the lightning gun. So I was wondering if someone could please tell me how I can find the DLCs that I seem to have?