"Credit card challenge" legality?

I used a credit card from twitter to buy something and i want to know if its fraud? https://mobile.twitter.com/creditcardchal2/status

Other answer:

Casey Y:
Twitter doesn't issue credit cards and anything you found on there wouldn't be yours, so fraud…
Am Brown from Ohio USA and i want to say a very big thanks to Helen Kent for helping me get a loan and i will be forever grateful to her and i will like you all who is looking for loan to contact her via email: helenkent71@gmail.com
Steve D:
Very much so. You are not the owner of the card, so you fraudulently used it. A nice little felony.