No delivery

Hi

i made an order for a samsung last week, i was debited last week, i called the sales line on monday and they advised the phone would be delivered tuesday, they asked me for a convenient time and i advised between 8am-12pm, however 1pm came and still no delivery, i called again and the lady i spoke to advised its on its way and will be delivered on tuesday 7 august, i stayed at work till after 5 and still no delivery, i called again this morning and someone else told me that the system is showing that the phone has been delivered, i explained that no delivery took place and she said she will contact dispatch this morning, its coming to the end of another business day and i havnt even received an sms or email letting me know what is happening, could somebody please explain to me what is going on