Worst service ever..CCD Couriers

I want to mention my terrible experience with CCD Couries service who are delivering FNB credit card. I ordered new credit card and I clearly chose the option for delivery which I needed it to be delivered to Kyalami Corner FNB Branch. But they phone me and asking which address they can deliver the card. And the phone is normally cut off before I even tell them what I want and they never call me back. Here is what CCD Courier did to me.(And it is not first time. I got my credit card about three times including this one in the past. All of the occasion is the same as the below.) 1. They don't want to spend money to make a phone call. They phone me during the day and I answered the phone. While I was talking to the consultant, the phone is cut off without any reason. And they never call me back again. This was happened before. And happened again. And they just send sms saying they cannot contact me and asking me to call them back??? They are the one who hanged off and want me to call them back.... 2. They don't keep their promise.(From Previous experience) After I confirmed their deliver time to my home, they promise they are going to deliver for example from 10:00 to 12:00. And they never come during that time. I told them clearly when I make a appointment with them, my wife have to go out from 12:00. But They don't care at all. No apology and no explanation in advance. And they just go and I am the one who have to wait a couple of more days.

Are there anybody who can explain why you guys hang up the phone and never call me back. And Just send heartless SMS saying you are not able to contact me when you don't want to try??