Multi-summon problem

I have multi summoned twice on the Super Saiyan 4 Vegeta event and have already done it 3 times and every time I have done so I have been screwed over and have only gotten R rated cards not a single Sr or even Ssr other then this love the game

Jdnsjbdjdnwbdjcksbdcjksms about DRAGON BALL Z DOKKAN BATTLE, v3.3.0