in a situation like this, you write a statutory declaration where you mention everything in detail. I dont think tampering with the documents is a good idea..
in teh stat dec you can mention that you fear loosing your job and the reason the letter has study purpose is cos you could not reveal the same to them.
in teh stat dec you can mention that you fear loosing your job and the reason the letter has study purpose is cos you could not reveal the same to them.