There are 3 way you can earn promotion funds:
If you win or place in a free-to-play fantasy contests, the funds you win will land in your promotion funds wallet. You can then use those promotional funds to place bets, enter paid contests or purchase from the marketplace (if available in your region).
If you are in a region where betting is available, you can claim deposit bonuses. Each new user will receive a "first time deposit bonus", which will match their initial deposit up to a ceiling, and there will be other deposit bonuses which are based around big events, so keep an eye out!
Similar to Deposit Bonuses, bonus bets may be given out to users in the lead-up to big events or tournaments. Skrilla may also give out bonus bets to users who perform certain actions or are valued users of the platform, so keep an eye out for these as well.