Which stock broker is not fussed with proof of funds?

Hi,

As the title suggests, I am looking for a stock broker, or CFD broker that has easy requirement for an account.

I have an account with Etoro already but I haven't yet tried depositing a large amount yet, I currently only have £200 with them.

I have heard stories when etoro asks clients to produce proof for source of funds when they request fund withdrawal so I'm not sure if I'm confident enough to deposit tends of thousands there.

Is there a good broker that doesn't require too much proof for source of funds? I want to deposit £120,000 over the course of 12 months.

And also, if someone knows a broker with easy requirement for opening a corporate account, please let me know. I tried opening one for my company with CMC markets but they request so many documents.