Why do fans buy dozens of copies of the same K-pop album?

I need practical help with a K-pop Fan Questions issue.

The policy question: Why do fans buy dozens of copies of the same K-pop album?
Useful context I found: Random photocards, fan-call lotteries, chart goals, and store benefits turn each copy into another chance.

My specific situation: [Describe what happened, including dates and messages shown]
The outcome I want: [Refund, verification, appeal, account recovery, explanation, etc.]
Important constraints: [Country, deadline, booking/account status, documents already submitted, budget, or other limits]

Please:
1. Identify any missing facts you need before reaching a conclusion.
2. Separate platform policy, local law, and your own inference.
3. Give me the safest next steps in priority order.
4. Use current official sources where possible and flag anything that may have changed.
5. Draft a concise message I can paste to customer support.
6. Do not invent account access, guarantees, refund rights, or legal conclusions.