Free bonuses are issues as a goodwill from the team of 888bet and are entirely based on activity. In case there is no activity on the account, or you have just received a free bonus, we would not be able to add another one until further activity. The 888bet team would sometimes decline a free bonus, due to no activity on the account.
The free bonuses are free bets (sports) or free spins on the Netent games.