This is very poor behaviour on their part but unfortunately not uncommon as women often get discriminated/ sidelined following childbirth/becoming mothers.
The fact that they put all this stuff in writing is clearly building a case against you to say you've been giving warnings, didn't do your job etc.
My recommendation would be:
- Find a lawyer and start building a case against them.
- Going forward you must firmly address each comment/criticism in writing and push back.
If they tell you you haven't done anything. You have to explain the current status in a clear concise and calm manner, something along the following lines:
I am surprised that you are emailing me about x as this is the first time I've been asked to do this. If you'd like me to do this please could you communicate a clear deadline by which it needs to be done.
if things are said to you, you must send a follow up email outlining the discussion and put it in writing.
my manager has told me that a job like mine is not suitable for working mothers and HR have stated that if i can not work around my children i need to go part time
- that's absolutely unacceptable and you should write back and say that you were quite shocked that he/she said that a job like mine is not suitable for a working mother etc.
my HR person has stated that i am not attending the office for my full hours despite him coming in after me and leaving before every week
- this is not good and something they can use as gross misconduct, so you must ensure you work the hours outlined in your contract.
- however you must respond to each such accusation firmly confirming that you work the designated hours as per your contract and really shocked at their suggestion that you don't, which is not factual. Give examples where you worked overtime and had to work late etc. which you of course able to do occasionally but hope the organisation appreciates the efforts on your part.
You must record each occasion of being side lined or mistreated and selectively put stuff in writing and put other examples in your back pocket for an upcoming grievance.
You have to be assertive and make them understand you know the game they are playing. The common and natural reaction would be to sweep these comments under the rug and hope they will go away but I can assure you they won't. Every message they send in writing is to build a case against you.
So you have to start building yours. They must understand that every email they send may backfire.
If they allow flexibility to other team members but not you without obvious reasons, try to have some emails/ facts supporting that.
However, it means that there is no room for mistake. You must do your hours, you must complete your tasks especially if they are asked in writing. Each time you should respond and say what has been done and if it's been completed etc.
Ask in writing for certain days/hours that work for your family explaining that it won't affect the workload but would suit you better as it would better align with your current set up etc. It's important to record these things. Ask for sick days related to children, get a doctors note saying you are under immense pressure at work due to the pressure they put on you. Don't be shy about highlighting the fact that you are a working mother and support the family etc.
Make a note if they are signatory to some family friendly initiatives which they clearly
don't follow.
That's what I can think of from the top of my head. Good luck!