I am currently on a final written warning from my employer for the use of bad language in the past. Since my warning was issued I have cleaned myself up and kept my mouth shut. I havnt been an angel in the past but every time I used bad language back then I felt provoked into doing so (still no reason to use it) However I have cleaned up my act and got on with my job and things have been great up until today when my manager accused me of using bad language on 3 seperate occasions. This is completely untrue. Ive always felt that they never liked me and would take any chance they could to get rid of me and today I believe they've done that. I havnt lost my job yet but after the meetings ahead I feel I will. I didn't use any bad language so they have 2 different stories from 2 different people with no witnesses involved. Can they sack me? If they do can I sue? Please help. Thank you.