Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
How old are the children
The law says that children are entitled to a relationship with both parents and the courts will enforce this if necessary.
The chidlren are too young to decide whether or not they have contact - they tend to tell each parent what they want to know - and at the moment they are with their mother and will reflect her views.
You need to arrange to attend a Mediation Information and Assessment Appointment with a Family mediator (this is compulsory) if your ex will not attend mediation or mediation fails then you can apply to the court for a Child Arrangement Order setting out what time the chidlren spend with you
The form you need is here
and the fee is £215.
Your relationship with the children will need rebuilding so you will need to start gradually and build up from there
I hope that this id of assistance - please ask if you need further details