The web page www.playbuzz.net offers a 5 day free trial, and claims that no fees will be billed unless you upgrade to the membership.
After 5 days, they bill your credit card at $34.95 per month, because you had to cancel the free trial before it expired (within those 5 days) to avoid being automatically upgraded and billed for the membership.
Obviously, this information is not clear during the registration process.