Customer service agents rude and hangs up. not helpful

i have been phoning the call center, i asked to speak to the supervisor or manager and i was told no one is available and she hung. The customer service is extremely bad and rude i am shocked why its operational. The first time i called the guy who put me on hold just put me on hold after saying hello. i asked him why i was on hold and i want him to let me know in future why i am on hold because it does not make sense that you would put someone on hold when you don't even have the tracking number or know why they are calling. i phone back after he dropped and request a supervisor and the lady refuses and says i must send my complain to info@lazer and when i ask for her name she puts the phone down on me. its apparent that this call Centre does not have anyone listening to these calls, there are no rules on how to speak to customers, basically no one cares. Even the drivers are disrespectful because everyone working for this knows that there is customers service. You can do whatever you want and get away with you. Its really pathetic. its actually appalling to say the least.