How can I connect with apple support when I'm from Ukraine?

Here you can choose a product you need help with and you will be contacted by support via mail, chat etc.:

https://getsupport.apple.com/ (You will need to choose 'The topic is not listed' to write a message)

Try this number > (44) 0844 209 0611 - it is the same Support number as for these = Croatia, Saudi Arabia & Turkey, found from the list on this page > Contact Apple for help with Apple ID account security (a 'country selector' page)

https://locate.apple.com/europe/en shows the same number at the bottom of the page. You can also find sales & service locations in Ukraine on this page.