Bus didn’t arrive
Firstly, incredibly unclear which bus station the bus was actually supposed to stop at, out of two possible options in Aluva (Kochi) for the bus to Munnar. Second, the tracking stopped working almost immediately. Third, bus never actually showed up - bus station employee had confidently told me to wait outside 2 hours prior, then when asked again an hour after the bus was supposed to arrive, told me the bus didn’t stop there (at 4am by this point). I had to book an uber or risk being stranded with nowhere to go on the edge of town. Their customer support was absolutely non-existant. DO NOT use redbus unless you can physically see the bus you’re buying a ticket for.