So what your saying is that you want to buy a bitcoin max account worth more than 150BTC for your BTC, but only after you are sure that the account will pay?
Is it just me or does this seem a little silly?
If I had a bitcoin max account with 300BTC in it and and I wanted to sell it, I wouldnt sell it for less than 300BTC AFTER I knew that the funds could/would/had been drawn out.
Or maybe your google translate is broken and has completely butchered the meaning of your proposition.
kind regards