Disappointed in the poor service and ignorance

so disappointing .Ordered online and the day of my delivery there was nothing: no item or message to what is going on.I picked up my phone at 5 pm to ask what is going on, strange how no one had the audacity to update me of the delay or that they are out of stock.I was instead slapped with an email of we refunding you as we out of stock ,this was after I reached out to customer care via email.How do you ignore customers like that and not even bother to keep them updated for a company of such a size?