agent was rude and hung up on me after 1,5hr hold

we ordered adsl/wifi internet through a Telkom landline. After two weeks the line was (finally) installed and the modem had been delivered. The setup was said to be super easy. Only it wasn't. So I called the call centre for assistance. First, we had to hold for 45 minutes only to find out the call centre had already closed for the day. Second time, I was holding for 1,5 hours when I spoke to a female agent qho was very rude. When I asked to be a bit more friendly since I had been holding for a long time and didn't understand what she was asking me (I'm from Holland and the lady had an Indian English accent, so very hard to understand) she sighed and hung up on me.....!! This is so rude and not the way you should treat anyone - let alone your paying customer. Again, I had to call them, hold for another 1,5 hours before I got hold of another (very friendly!) agent. This is not what you call service Telkom!! (very annoying, their waiting tune says - speak to a friendly callcentre agent haha)