Melanie Mousse

It's always like this, even hackers do seek any kind of profit for their fabulous works.

You should try contacting Twitter support. Even if email and everything has been changed by the hacker, there still should be traces from what was changed to what and you can inform them, that the account has been hijacked. Unless you're using VPN, your IP address should also be a strong evidence to prove it is your account.

@RikifiveI have already contacted twitter support about the issue and still waiting for their response. Apparently the hacker is located in Virginia and logged into my account on their iphone. It could be obviously fake tho. 

They're very likely loaded with VPN, so it's probably fake. Would be super dumb and rather ironic for a hacker like this to not use VPN and reveal their IP address and location. 

Either way, good luck with the support, let's hope they're competent enough to handle this..

Thankfully they didn't hijack your email, because that alone makes things much easier to resolve.