I see nothing wrong in what you did. So you used a VOR to track as part of a diversion in VMC...? Still VFR then.
So your logbook clearly shows flights from A to B to C to A. Distance 300nm or more in one day.
Ensure that it is labelled as CPL QUAL XCTY. I see no reason to make mention of the dog leg required.
If you had got lost and various ATCUs required to file reports to the CAA that would have put a different complexion on the situation.
As FDRs/ CVR/GPS are not required to be submitted as evidence that a qualifying criteria has been met who would know anyway. ATC at the airfields record your movement were evidence ever required.