So this bonus offer is not a deposit bonus but is more likely a cashback offer of 50% when you lose your first deposit. It is a part of the welcome bonus probably and I believe they should include it to their welcome offer and not to be as a different promotion. This way the players would be better informed about the promotion. This bonus has low wagering requirement of 30 times the bonus amount which is great.
Since my first deposit was 25 euro, I received 12.5 euro as a bonus amount. With such a low balance I decided to play Starburst with only 3 lines active and with a bet 0.15. Lately I prefer to play this slot this way since the symbols are stacked and I can win bigger because I have a bigger coin value. The slot was good and when my balance was 16 I doubled my bet and I hit a double wild and a big win giving me another 10 euro. I changed the slot and played piggie riches with minimum bet. The slot seemed good again and I raised my bet but this time I was not lucky and my balance fell under 10. I changed to Starburst again, played it the same way but I was not lucky again at this slot so I lost them all.
I had a good time with this bonus and I find it a nice offer from Netbet casino.