WARNING!!!!! DONT ORDER ONLINE!!!!!!!

DONT ORDER ONLINE! Ordered essential items online: The website advised delivery between 5-7 days and we have received nothing! You call their support desk, no answer. You email their support desk and no answer. What do I do?

UPDATE: After being on hold for an hour...they advised the are out of stoc****?? How do you allow customers to purchase items that are out of stock???