Not really advisable to open a topic that hasn't be active for well over a year, many things could have changed. If you refuse to give your payment details, then you can't get the 60 day free trial. As has been said there is nothing to stop you using the 30 day trial (no payment details required).
If you don't have a credit card or paypal, etc. how are you going to pay after your 60 day trial anyway.
What is this "Just in case" that you talk about ?
The product isn't free you are given the opportunity to try it free for 60 days before payment is required, you could call it a delayed payment. You can always uninstall the 60 day trial and cancel the payment instruction.