I don't have Facebook Messager.
Send your order number, the screenshot of your review, and your paypal account to our email.
Our eamil address: firstname.lastname@example.org
What should I do if I don't have one Paypal account?
We usually reimburse you by Paypal. You can sign up for your account easily. Or you can inform us of your bank account if you don't have PayPal. But it may take a long time to get your cashback.