Hello 'escol_danie',
You're doing all this from a teeny little gadget in the palm of your hand, aren't you.
Paypal will not charge you for the same thing 6 separate times. If ever there is a problem with your account, such as you believe you are being wrongly charged for something, you can always call paypal's Customer Service and they'll help you sort it out.
And why not, . . . you've got the phone right there in your hand. 