[2023] How do I have 700 vbucks? I never bought any.

So, I've been playing since July 2023 and noticed I just got 200 more vbucks with new launch. But how? I have 700 vbucks now. Did I do something to get free vbucks? If so, how can I get more? 🤣 I have my eye on a skin I really want haha