To be eligible for the “Top 200 rewards” you must be a top 200 token holder according to Etherscan, and you can check here:
We do not include team wallets or exchange wallets in the top 200, meaning the real cutoff number is closer to 207 or 208.
Rewards for the top 200 holders are paid in tiers. You can find the tiers and some examples here:
Your tokens must be held in a personal wallet such as MetaMask or MyEtherWallet. Basically, just not on an exchange or any other wallet you don’t have the keys for. Your rewards will be sent to the same wallet.
The top 200 snapshots are carried out at the moment each token sale ends (either by time, or when it sells out).