Very disappointed

Woolworths Dash, I think you need to sit down and just brainstorm again on how to handle the Dash delivery, twice I ordered for delivery and my order didn't get to me on time not even a call from their customer service to say they are delayed or will be a couple of hours late. This was in Bloemfontein, if you are short on staff for delivery rather say the drivers are occupied and will not be able to deliver instead of taking orders that you cannot deliver as per the tome YOU place on the order. What is more frustrating is me having to call with my airtime and time to ask what the problem is or when I will receive my order because I need to now leave the house! How will they finally deliver when there is no one at home?! VERY DISAPPOINTING