Searching for Redhill to tonbridge on travelinesoutheast (for a departure at 09:45 tomorrow) and not selecting Trains on the method of transport brings up a journey involving 3 changes of bus - total journey time about 2 hours 7 minutes (direct train takes 42 min) - some journeys are 3 hours.
Most journeys involve changing buses in Sevenoaks so may be quicker to use the train Sevenoaks-Tonbridge.
Perhaps they will direct passengers to travel via Sevenoaks. Lol.
Sent from my SM-G925F using Tapatalk