Making a thread here so we can have a full conversation about this.
@xMiso and @azzouzana are correct that this is the rental model. It's always been a risk of migrating rental to PPE, but the opposite is also true: if you suddently migrated rental to PPE without giving existing users 14 days' notice, you could lose a lot of long-standing customers who will feel angry that you switched up the pricing model without telling them.
If your rental is $30/mth then you were never gonna get $100 for 10k results under rentals, and it's only by switching to PPE that you can receive that payment, so you're correctly identifying the motivation for moving to PPE - the problem for you personally is that you're identifying this now, whilst you're in the 14 days period, whilst being able to see the cost comparison in real time.
Hopefully the user will be back for more results soon and will pay the full amount, now they're able to test how effective your Actor was this time around.