In Hauts-de-France, some TER are operated with TGV trains, labelled as TERGV, which require a supplement on normal TER tickets.
In the Railplanner, not all of these connections show up, and those that do, seem not to require a supplement with Interrail passes.
![](https://uploads-eu-west-1.insided.com/eurail-en/attachment/f68b5615-a26b-44ef-8a93-03f6f1862e1e.jpg)
![](https://uploads-eu-west-1.insided.com/eurail-en/attachment/4359c488-c730-4aaa-8269-dcfc56aa581e.jpg)
My questions:
1. do these trains require a supplement for IR passes?
2. is there a reason why not all connections are included in the Railplanner?