I have tried unsuccessfully to open two pdf and one word document on 1/24/2019 at around 9 am and they are stating that it is an invalid or corrupt...

I have tried unsuccessfully to open two pdf and one word document on 1/24/2019 at around 9 am and they are stating that it is an invalid or corrupt PDF file. I have now lost three unlocks and I am still unable to view any document. Will these unlocks be added back to my account and are you able to open any?