The $9.9 you paid was meant for an extra Fingerbot plus when you participated in our Kickstarter program. Please kindly check the campaign on Kickstarter if you have no idea what we are referring to. If you participated in it, we will send the extra one along with your Kickstarter order. If you didn't, we are afraid that you cannot get the Fingerbot Plus alone. Since our Kickstarter campaign is ended now, we could offer you a $15 discount code on our website. Please reach out to us at firstname.lastname@example.org and use '$9.9 purchase for a coupon' as the headline, and provide us your invoice/receipt as a prove. We will send you the coupon code after confirming your information.