SERVICES INAPPROPIATE

I have made 2 bookings for our company with Greyhound and both bookings was unpleasant experience. The first time i had an issue with my invoice. I phoned in and was directed to Patricia. When I phoned her she told me that it is better to make bookings through an agency, as she gets a lot of issues. Then told me she was to busy and that I should phone back in 2 hours. I left it and phoned back 2 days after. She put me on hold and told her colleague that I was rude to her the first time I phoned, and that she mailed me the invoice. Which she now has to mail again. After I told here if she wants me to be rude I will do so but I have never received the invoice. Later she mailed. Today again Yesterday I made a booking and spoke to Sibisiso. We then made payment and sent it to him yesterday. I phoned this morning he advised that he did not get the proof of payment I should sent it to [Email Removed] which I have done. I got a call later confirming with my booking. The person we made a booking is on the bus already. He phones me now to say that they made a booking yesterday and I made them do a double booking. I am sure this would be my last time arrange with Greyhound.