diff --git a/xml/page_payment.xml b/xml/page_payment.xml
index 5fc144d5..a4b47b9f 100644
--- a/xml/page_payment.xml
+++ b/xml/page_payment.xml
@@ -280,7 +280,7 @@
 		Var Seeker.FreeVendingCampaign = 0
 		Var Seeker.CodeChannel = 1
 		Var Seeker.CodeNumber = IDNum
-		Var Seeker.VendingCampaignRI3 = 15
+		Var Seeker.VendingCampaignRI3 = PriceDiff
 	EndIf
 
 	If ChildrenFree = 1 Then