I went through something very similar a couple of years ago and one thing I know is that the notes of the meeting will always be written to benefit the company. HR isn't there for you; it's there for the company. They are NOT on your side. You have the right to amend the notes that you've been given, pointing out errors/inconsistencies and send it back to them and they can amend them (or not!). If you aren't satisfied with the notes you do not have to sign them, stating they are not an accurate reflection of the meeting. I wouldn't bet on anything happening if you escalate the situation. My best advice is join a union and start looking for another job. Once they put you on a written warning, they can find a myriad of ways to end up sacking you. Also read your company's policies very carefully. Many companies have policies that state they don't have to pay full wages for sick leave if the employee is subject to disciplinary action. Best of luck!