Why do I have such terrible luck with mystery boxes??

I started when the game was released for Android, and for most of that time I had a low multiplier i.e. less than 200. Starting at Christmas, It took about 100 days of careful reinvestment to surpass 2000% after which managing more than 100% a day is easily possible.

The more you have the easier it is to make, boxes are an important stepping stone for the freemium player imho.

For the record, I've never benefitted from an serious exploit to help me.