Customer dissatisfaction

I receive an email / sms in the morning regarding delivery . I called them at 12:06 to follow up on the delivery time as it was not stated on the message . i spoke to a consultant who informed me that he is calling the driver therefore he will revert back to me in 10 minutes , 10 min passed no word from him . I called back again at 13:29 and spoke to the other consultant who told me that he is also calling the driver and that he will call me as soon as possible as we speak it is 2 :45 and still i haven't heard any word from neither of them . My frustration is i have explained to them so well that i have some errands to run i can not go anywhere as the driver might arrive while i am out which may lead to issues . I feel so inconvenienced and I'm disappointed with the service .I could not attend my doctor`s appointment just for being a better person and understanding that i can not inconvenience anyone however how i was treated was the opposite .