The 14.2 BTC was deposited to a different Primedice account with a different deposit address.
I cannot find the TOS for primedice, assuing is the same of Stake.com
5.1. PERSONAL USE. The Service is intended solely for the Users personal use. The User is only allowed to wager for his/her personal entertainment and may not create multiple accounts, including for the purpose of collusion and/or abuse of service.
Source
https://stake.com/?modal=termsIdk what happens to founds in this case 9 BTC are a lot of money.