Topup IDR at indodax with QRis (Low fee) -> Buy USDT -> USDT sent to Binance (Free)

I regret buying USDT on Binance 10,000,000 only got 553, that's it
if compared to buying on Tokocrypto the difference is very far, and 2,500,000 also all the differences are far in what you get, not careful to compare with others
why is Binance's service like this, it feels unfair