First up, I noticed a mistake on this page with the given bonus code - you should use "GOLDENWELCOME" for your first deposit and not the "MONTHLY" code shown on this page which is infact for a similar monthly reload bonus, however using that one before the correct welcome code will make you ineligible for the following parts of the welcome deal, which would be a real shame as there's a whole bunch of free bonus cash to be had as a new player at this casino.
There's quite a few terms and conditions to be aware of but helpfully the details are listed in full when entering the bonus coupon code in the cashier, so you really have no excuse for breaking the terms here. Only slots are permitted whilst a bonus is in play but thankfully other games are deactivated until the wagering requirement has been completed making it impossible to have your winnings confiscated for playing a prohibited game. It really amazes me that other much larger casinos running more "premium" software such as Microgaming or NetEnt still don't implement an automatic system such as this.
I didn't manage a withdrawal from this first stage bonus and although I didn't fancy claiming the next stage of the bonus the same day I did make a point of checking the casino's website for details of any eligibility period for the welcome offer as a whole and found it is set at three months - certainly long enough to make your way through a handful of bonus coupons, but not a very long time should you forget about the casino for a while after signing up!