Wrongful information

I bought 2returns tickets from checkers store from Kimberley to Durban on the 24/03/2019 departing on the 25/03/2019 then we took the bus although I was not happy but it's fine ,then when we were in Durban we decided to extend our stay then I called the Greyhound call center so that they can change the tickets but to my surprise they told us we are Bolinger allowed to do that because of their new law off we didn't know anything about because we always use Greyhound they said they've changed the law on the 22/03 but we didn't get that from checkers so i booked with another bus came back on Sunday .i went to Greyhound at park station to ask about the new T's C but nobody knew any it and the lady I spoke to said I must come back on Monday to see the manager .I went back on Monday guess what maybe I'm to low for the manager to see me she refused I waited for an hour she didn't show up then I called the customer service the lady dropped the phone on me and told me to go to checkers and asked them to refund me because they didn't give me the Greyhound cover that has the TsC . So now Greyhound is running away from the blame they want the vendor to pay me which is a problem because if that's the point I wanna know if do they have a Rep that's goes to all their vendors to check if they did get the new leaflet with the new TsC .I've filled in the complaint form and I haven't receive any response from them ...so as I heard from other passengers then I know I'm not alone ???