From 01.07.2022 new service fees will apply to bus tickets.
1 euro service fee will be still added to 0 € price tickets purchased from Tpilet. As an exception, service fee will be applied when buying senior 63+ and 7 to 19 y.o (incl.) passenger 0 € priced tickets from ticket offices to line 347 (Tartu-Pärnu).
New rules for ticket sales can be found HERE.