system crystal is bad

no this system is bad, in past I'm collect 650000 crystal per 230000 score in 8 months, and now 4000 crystal per one weak and 6000 score :angry:

I was collect crystal since 6 months to buy railgun m3 hornet m3, and in the end nothing!!! :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: whyyyyyyyyyyyyyyyy?????!!!!! :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry: :angry:

when kit railgun m3 will return? please don't change it. this kit is the best, I want buy it.