Unlimited Referrals, Unlimited Rewards Get rewarded every time you share the sparkle with your friends and family! Get a Free Cleaning after your referral’s first cleaning. Please write name of referral here:________________________ The Cleaning Authority - Mount Prospect Offer valid for new weekly, bi-weekly, or every-fourth-week recurring customers only. There is no limit on referrals. This offer is not redeemable for cash and must be presented at the in-home estimate.