I found out about this late, and it changed how I use the whole subscription.
Activation is at https://t.co/GtIDoqNubR under Benefits. It takes about five minutes and doesn't ask for a card.
What are you running on yours?
If you have a Visual Studio subscription, you already have $150 a month of GPT-6 available.
It's Azure credit, and Azure OpenAI bills against it. I had mine for months before I understood what it could buy.
Dictation runs on the same credit. GPT-4o-transcribe handles my accent in a way local Whisper never did, and OpenWhispr and Spokenly both accept your own key.
I dictate most of my prompts now.