I'm currently on maternity leave from work and have contacted my boss about my return to work date. It has changed from 1st October to the 2nd january. I'm aware I only need to give 8 weeks notice but wanted to be helpful in letting him know. He's emailed back saying that because my "plans have changed" he doesn't need me until February. I have put him straight and told him I don't legally have to give him a return to work date I just need to give him notice. All the way through my pregnancy he bullied me, he made work so unbearable and because of him I ended up severely depressed and made my pregnancy probably the worst experience of my life. He would have me do jobs (not in my description) that put me and my baby at risk and was just awful. Do I have any grounds to go on with how I've been treat? I feel like because nothing actually happened to me (I wasn't injured etc) I won't be able to take him to court. I just want him to be Aware he can't treat his employees like he does 