Won my PIP Tribunal, but I'm confused on the dates.

CrC2025

Hi everyone.

I won my PIP tribunal the other day and it states on the outcome that the claim is backdated to 14/12/2023.

This was a change of circumstances review which I requested on 07/07/2023.

My Question is this:

Should my claim be backdated to 07/07/23, when I notified the DWP of a change in circumstances, or should it stay backdated to 14/12/2023 when the DWP made their decision following the reassessment?

Any advice here would be greatly appreciated