Therefore, I will repeat here my comment (and make it a bit longer).

Albeit agreeing on the capacity problems at Clapham Junction station and the increasing trend, I cannot see how it can be related to PAYG Oyster.
I think your statement would have made much more sense with examples of:
1- East London Line
2- Heathrow link extension
3- Improved traffic on overground service

Those are indeed reasons which add to the case for a much needed station redevelopment.

After announcement last week that a share of the £50 million will be allocated to CJ (for whatever political reason behind, this is good news), Network Rail is now working on planning. Can you criticise them for willing to pay attention to users and address people’s needs?

The Clapham Junction Action Group is going to launch a consultation on the matter and is already raising the issue with a number of contacts such as ORR or NR.

I remind you that I asked members of the Conservatives in your ward to meet to discuss the issue, but you have not come back with any date yet (although being the only one who replied). I cannot prevent to notice that Justine Greening showed more respect and concern on our issues when contacted in the past, despite representing Putney.