As far as I have understood correctly and remember the guideline, fare basis would be read as the following;
RHVA2FI:
- Booking class (R)
- High season (H)
- Fare family Value (VA)
- Round-trip (2)
- Country code (FI)
So you would have Value ticket which typically is possible to be changed with a fee depending on whether there is space in the same booking class (otherwise need to be upgraded to next available booking class).
Of course, doesn't help if there are no flights at all currently.