Most painful experience with service provider

<p>I bought a ticket and because I got sick, I couldn't board the bus. I went to the offices the following day requesting for a date transfer. They asked me to send an email and scan sick note through, of which i did. They told me to wait cos the superviser was addressing the matter, the whole time I'm sitting at the station from 9:00am waiting for their call. There's a bus leaving at 12:00 and it's about to leave and I'm still waiting that call</p>