You are here because you want certain VIP Tiers to receive a better referral kick back than others. Let's get into it.
First, you'll need to make a referral activity, go here to ensure this is set up.
Second, you'll need to make sure you have already created your VIP Tiers with Segments. If you haven't, go here and complete this first. Segments do not have to be co-orelated to VIP Tiers so if you jut have a net new set of members you want to give this referral kick back to, you can just Create a Segment.
Lastly, you're going to go back into your referral activity and add additional segment rules to it.
Here is how: