1. Go to Mafia
2. Collect 1 coin in the first room
3. Click Relog
4. Access Mafia through Special Zones -> World Zone -> Secret hideout of the Mafia - > Re-entry.
All the coins will go to you until the end of the Mafia.
P.S. There are a few caveats:
1. It doesn’t help everyone, but in 90% of cases everything is fine on tests
2. There was once a case where one character had a re-entry button - it didn’t appear (it was not possible to repeat)