Is the Bits waitlist fee refundable?

Could you please clarify if the waitlist fee for Bits is eligible for a refund? I'm interested in knowing if there are any circumstances under which I can receive a reimbursement for this fee, in case my circumstances change or I decide not to proceed with the registration process. It would be greatly appreciated if you could provide me with a detailed explanation of the refund policy for the Bits waitlist fee.