Can a Code be blocked if I was scammed?

I misread this the first time. So I do apologizes if I confused you before. This is something you must deal with Ebay for. I think the only thing that can be done is maybe (I do not know how it works for digital games) they give you the value of the item
in question from Ebay. As the sale was done through there website, it is up to them to come to an agreement or possible refund. That is Ebay only. This is something the Fraud department would help you with. If the code is already redeemed, maybe Microsoft
can help once it is proven fraud. At that point they may block the code. They will not however, be responsible for replacing the code. It is a risk you take when giving people these codes. My only suggestion is deal with the Ebay Fraud dept.
and hopefully they can help you. Sorry to hear this happened and good luck.

Hello

You are going to have to go though PayPal and Ebay Support Chain.

Once a code has been redeemed Xbox and Microsoft can't assist. Sorry

Hi Herr Felix 07,

Thank you for posting on the Xbox forums. As the question has been answered, I will go ahead and lock this thread to prevent repetitive answers. Feel free to come back anytime if you have a question or issue. We will be more than happy to answer
any questions and provide solution. Thank you again and have a good day!

In this case eBay approved thats true.

however they can check it

Hello Herr Felix,

Thank you for keeping us updated. Unfortunately, Microsoft is not responsible for personal transactions made on Ebay, or any other 3rd party retailers. In this case, you would have to request support from Ebay.