We noticed when taking entries for the recent Aquagaine that some people who do not have a PayPal account had issues when they tried to finalise their credit card payment using a "guest" PayPal account. The problem stems from new Australian laws that have tightened up on using guest accounts for such payments. Paypal has indicated that they will try to re-implement guest payments but if you strike this problem, you have a couple of options. First, ask your team members and if one of them has an account, use that account to make the team payment. Alternatively go to the official PayPal site and create your own account. This is a relatively straightforward process where the personal information provided to Paypal is not much different to a Guest checkout with the difference being that information is saved for future use.