Messed around with delivery time - still no delivery

I have been awaiting a delivery from CCD since Tuesday. On Tuesday morning, I called them to delay the delivery as I was not available at the set time. I was then told by the person that I will receive a call from the courier to arrange a suitable time that day. I never received the call from the courier.

I continuously contacted CCD throughout the day, often the phone was not answered or dropped. After trying to getting hold someone, I was told that I will get a call back - still no call back. I then called again on Wednesday morning, only to be told that the couriers had left for deliveries already. I then arranged that the card get delivered on Thursday morning between 8 and 10 am.

I contacted the call centre this morning (Thursday) to confirm that that delivery will take place today, only to be told that delivery is now only scheduled for tomorrow.

This is the most ridiculous service I have ever received - from no one calling me back to being stuffed around with the wrong delivery times.