This formula's own materials describe the guarantee process with this specific phrase: if you are not satisfied, contact support within 60 days for full guidance.
Rather than describing an automated refund process, this formula's own materials point to a support conversation — worth reaching out directly within the 60-day window rather than assuming a self-service refund option exists.
Contact support directly within 60 days of your purchase date, referencing your order number, and follow whatever specific guidance they provide for your situation.