Respond to email from ex-partner's lawyer?

Questioner

I got divorced in 2016 and a parenting plan emerged from that. This parenting plan was followed until July 2022, until one of the children was no longer feeling well. Then, in consultation with mother, I brought her back. Since then my ex-partner has been trying to thwart me. My son has also not been allowed to come since then unless I meet the condition to undergo systemic therapy. I don't want this. Now I get an email from her lawyer asking if I want to send my 2022 annual statement and 2023 salary slips. (I did not receive a letter by post.) She also proposes new parts of the day and, if all goes well, an extension. (EX unilaterally cancels the existing plan) I did not approach our children out of self-protection and for the sake of the children's peace and I ignored my ex because her word is law. What should I do with received EMAIL Lawyer Ex Partner.(No official letter received by post.)? Should I respond to her lawyer's email now or wait until I receive a registered letter? I don't want to see our children anymore because I don't want to have anything to do with her anymore because she sends a lawyer to my house every time I don't agree.

Lawyer

You will continue to have to deal with your ex, because you will remain their parents. Approaching a mediator together could be a good choice. If you do not respond to the lawyer's email, a decision may be enforced through the court. At that stage, I recommend that you also approach a lawyer.