Oh, it's easy to get a hold of Customer Service but THEY WILL NOT HELP You if you need a refund for an erroneous charge or a mistake ClassPass has made. They'll simply tell you over and over they can't issue any refunds no matter what even if you haven't used a single credit and no physical property has been exchanged.

Impossible. They will email you 1 week later but if your payment is late they will email asap.

Almost impossible to cancel. A million hoops to jump through however signing up is extremely easy