Someone is hacking my game and doing it forcefully

Why the choice of word, "robbed"? That would mean someone forcefully took your money and you got nothing in return. Unless I'm missing something, you made a purchase and the games that you purchased can still be played. (You shouldn't have sold your Xbox
360.)

hello someone. Hacked. My other account. And i tryed everything. They changed my email address. And have alot of money. On games in that. Account

What i should do

I don't think you understand the gravity of the situation. 4 people had their accounts and ISP forcefully disconnected. As in for the duration of the match we could not connect to our ISP or our Xbox Live. This was not a simple thing. and reporting or blocking
will not "fix" anything. O would prefer it if MS. took action and permanently banned this account and Xbox directly. This is more than a violation. This is a complete hack and a vulnerability on the trusted Live servers we use. I can not believe someone was
able to easily block me out of my account. So I deem it necessary to "name or shame" To warn other users of this.

all we can suggest is you report and block the person who is hacking or you think is hacking.

Please Report and Block the Player through the console or through the enforcement site.

Here are some links that might be useful for future reference.

Link 1: https://enforcement.xbox.com

Link 2: https://enforcement.xbox.com/en-US/home/howto#sub-topic0-5

Link 3: http://support.xbox.com/en-US/xbox-one/xbox-live/enforcement-on-xbox-live

Link 4: https://enforcement.xbox.com/Enforcement/ShowEnforcements

Link 5: http://enforcement.xbox.com/home/staysafe#topic0

Link 6: http://enforcement.xbox.com/home/howto#sub-topic0-6