Judging from the amount of your withdrawal, it's seems you are one of big bettor or won huge amount on Roobet. I've calculated , total of your 3 these withdrawal is 2.5 btc or around $143,000.
But, why did you make several withdrawals?
The crash is a brutal game, there was no 100x for 700 rounds. Imagine using martingale and getting bust after 400 rounds without decent multipliers. Sometimes the three times b2b 1.00x going to hit and it is really a nightmare to chase losses on the next rounds. Btw, Roobet crash has a 3% house edge, as far as I know. For comparison, I know other alternative platforms offer the crash with lower house edge around 1% but the Roobet crash is only game I have managed to catch 7000x once.
100x can go up more than 1000 rounds. It's not something to be surprised though