Was anyone else double charged for a season pass this morning? I found that I was charged twice for one platinum pass.

Are you sure there's a duplicate charge, not just a duplicate authorization? The latter can happen rather easily and doesn't necessarily result in a double charge, though it may temporarily reduce your account balance or credit limit.

 

Contacting the park (if you renewed in person) or the CF Accesso store support number (if you did so online) would be ways to resolve an actual duplicate charge. If it's still an authorization, wait to see whether it falls off or becomes a charge.