somebody changed my Apple ID

I faced with issue with Apple support.

Describing shortly my problem, somebody has stolen my e-mail address, to which was connected my Apple ID, then this person used a block or "lost mode" for my iPad and iPhone 6S. Therefore, I have lost access to my phone and iPad in one day. Additionally this person blocked my old iPhone, iPod and iPod nano. After that he changed password of my Apple ID and changed an e-mail of Apple ID. Saying in other words, i cannot restore my password of Apple ID, because i got message "this Apple ID does not exist".

When i called from my own phone to Apple support i spent around 5 dollars for that, because there was a requirement to call to another city, then i got information that i need to call to Irish phone of Apple support and, which was an international call.

After that i got information that nobody can help me, even through i still have warranty for my iPhone 6S, because i need access to my e-mail to restore my Apple ID, but i do not have access to that e-mail since that person changed password and control questions, as well as in Apple ID page and in e-mail page.

For now i have only non working iPhone and all other apple devices, with cheques, and i must to use my mom's lagging Android phone. I am very disappointed about Apple's products, because if somebody will stole e-mail address, Apple's customer will loose all devises and Apple will not help him.

I asked a help from e-mail provider but they said that it takes up to half a year to restore an e-mail and they can not give a promise that they will be able to do it, since all control questions were changed.

My losses are more than 1000 dollars only for bad security of Apple's services, because if somebody will have access to e-mail he will be able to restore password of Apple ID, change it, change e-mail for Apple ID and change control questions, as well as block all devices. Moreover, Apple "will not be able to help you"

What can i do?