A City fire dept in texas passed me over for promotion in violation of tx local govt code 143. This was after i reported poss wrong doing involving other employees. No action was taken on reports and i was passed over for the promotion. I did not know about whistle blower act at time because no notice is posted in our workplaces. I filed lawsuit on the 143 claims. Can i bring in the facts surrounding the reports made or still add a retaliation claim to my original suit? All is still pending.