You need an account only when you have PascalCoin. At the bank you do not need an account number if you do not want to deposit money!
PascalCoin you get when you mine and get automatically an account with a found block. If you want to buy Pascal you get an account from echange.
So what do you need an account before?
I already have PascalCoins, but all of them are on my poloniex account. But I also would like to have my own account as well.
So then where can I buy pasc accounts?
Tell me your public key I give you an account of me.
Or you can buy here an https://bitcointalksearch.org/topic/pascal-account-trading-thread-1765822