hi guys, got a few question about cashing out. How long does it take to cash out using debit card??

and in pokerstar website i found this

"We will automatically credit cashouts back to Switch, Maestro, Solo, VISA Debit Card and CFT Eligible VISA accounts up to the amount purchased, from the oldest deposit made with any of these methods to the newest"

what do they mean by "up to the amount purchased" ?? means i can only cash out my deposit??