My ex partner and I share a 4yo and have been separated around 3 months. I booked a UK holiday and advised him of the intention before I booked and the actual dates on the day it was booked back in May. He then informed me he’d forgotten to mention he booked something on days that clashed and he also wanted her that week. He has since insisted my daughter be driven 8-10 hours across the country twice in a week to keep to our (casually agreed) days as we are 50/50. I sought legal advice and was told that I had a right to a UK holiday and he couldn’t stop me however he is now threatening to withhold her on the morning I have said I will collect her. He is blackmailing me saying she will only be available if I agree to her being driven to him halfway through my holiday. We have shared responsibility and no legal set days - a solicitor has told me to just take her as he has no right to keep her but if he stops me what can I do? We are due to leave this Friday so I don’t have much time