INTERCITY EXPRESS - DISGUSTING SERVICE

Booked a bus ticket for my children and granchild from JHB》DBN. The bus was infested with ****roaches and what looked like bed bugs! I am absolutely diaguated and would like answers. A 9 hour trip spent with insects & not forgetting broken glass laying behind the seat where they were. I emailed my complaint twice,no response called and left several messages and guess what still no response. How does a person resolve this when their customer service is as poor if not worse than the service they provide. This was on the 6th of April 2018. I have pictures of all of the above!