I also wrote an article, and I haven't seen anything about the T-shirt. I also see many people asking... Probably no one has received yet. I wouldn't know.
Hi Obiagba Mary Ifeoma, we've sent the emails to all eligible winners months ago.
Can you please check the spam emails? You should have received an email that ends with hashnode.com
Many people have received their t-shirts and you can see many of them on Twitter, sharing a photo with it :)