Hey can you guys tell me how some users are able to get down more then the limits allowed for example

https://nitrogensports.eu/betslip/c1d93c2elNtUjBacnI3SjJvRFltOHczQWE1Zz09

Limit for NBA is 5 btc more or less.

and

https://nitrogensports.eu/betslip/ec23615WlNBZUlCSGY4MnhZZ1IvRzBwdktJZz09

9.6 BTC on NCAA football you guys barley allow 1 btc bets. What gives?