ÖBB will refund you the Nightjet reservation for sure. They should pay you the bus journey but it'll likely be a battle with their customer service (feel free to contact Interrail too).
An active pass day cannot be cancelled: that's why we recommend to activate it at the last-minute, right before boarding. Interrail doesn't have to give you back the unused pass day but they might do so as a commercial gesture. Follow this link: https://eurail.zendesk.com/hc/en-001/requests/new
It's been 1 month since I made a refund request. I did it again 2 weeks ago but still no response. Is there anything I can do to get a refund? I don't know if they are ignoring me on purpose but it's starting to get annoying.
ÖBB? Try again. I don't think they're avoiding it on purpose but they're rather understaffed.
Did you receive a confirmation email or something when you wrote to them? There might be contact details.
Fortunately I haven't needed to deal with Nightjet cancellations (yet).
If Interrail, they've should answered a long time ago.
Yes, I was talking about OBB, Interrail responded quickly.
I received a confirmation email but it doesn't contain any contact details. It says “if you´re entitled to a refund according to European passenger rights, you will receive a reply respectively a confirmation in any case.“