引用自 Mister Biznes：

How to Refund a Game on Steam in 2 Minutes (2025 Update)

Here's the easiest way to get your money back:

1️⃣ Go to: https://psteamhelp.yuanyoumao.com
2️⃣ Select your game → "Purchase Issues" → "I’d like a refund".
3️⃣ Choose a reason (for example: "Didn’t enjoy the game").
4️⃣ If you played less than 2 hours and bought it within 14 days — 100% refund guaranteed.
5️⃣ Steam usually sends the money back within 3–7 days.

✅ Tested November 2025 — works perfectly.