There's no chance Stake would seize players money simply because they have more than one account. I wouldn't be surprised if the majority of stake regulars have more than one account. There's more to the story.
Like I said, check previous allegations on this forum.
Stake replies with a very descriptive reason when they ban someone.
This time it was clause 11, personal use - multiple accounts. They mentioned it explicitly not once, but twice AFTER suspending OP's account.
Please don't ignore it as it those screenshots don't even exist.