Loyalty Date Calculation on Activity Date

Hi Gurus.

I'm am struggling with something that looks very straightforward.

The SAP SPRO Documentation say that for the Date Calculation Procedure for Loyalty, you can either use the Activity Date or the Processing Date.

We have a default date rule in SPRO for the Loyalty Program, Point Type.

Then in the Rule Modeler for the required rules we have assigned the required Date Calculation Profile.

In all cases it always applies the Date Calculation on the Processing Date, not the Activity Date.

Does anyone know how to resolve this.

Many Thanks in advance

Panduranga