The game so far works on my emulator, also the post 132 guy is right, you can only spam the diamonds only after you gain diamonds, because my game run for 5 days until I was spamming kairo room with stamina refills with the diamonds, only then I got soft-banned from the gacha.
However if you're a patient guy or something, the facility tickets and job tickets are spammable because they're infinite and don't require diamonds, but they're only single roll each time.
Because I did once do a macro for spam rolling tickets the entire day and still able to compete in online competition the next few days.
Edit: Btw if you do plan to just do the spam rolling in one go then do facilities and weapons first cuz they're cheap but also much worth than jobs, since you can just get S rank cycling but the Facilities and weapons are only once a week.