From where the commission to me comes from if my referral plays a
free roll?
The answer to the last question in the FAQ page of Freebitco.in states the following:
Three great places where you can get your questions answered are the BitcoinTalk Forum at BitcoinTalk.org and Bitcoin Stack Exchange at Bitcoin.StackExchange.com.
.
The answer includes 2 places. Thus why there is stated three in the beginning of sentence?