Mediocre Service

I after failing to delivery my phone on agreed 5 working days period. I told the upgrading department that my phone can be delivered today atfer 13:00, so that they can inform their delivery company to come after 13:00 as I had an exam, they agreed and said they will pass the request. They decided not to pass the request even though they agreed that they will do so, now I still haven't received my phone of which I was suppose to receive yesterday. Don't make promises that you cannot keep let alone not listening to requests of your customers. Now 3-5 working days has turn into 5-7 working days.