I got one of those messages from Telstra, I waited 45 minutes, then the problem took another 45 minutes to resolve."We are experiencing an unusually high volume of calls. There may be an extended hold time. Your call will be answered in the order in which it was received."
I questioned the proprietor of a business when advertising - 90% off all stock.That is so obvious, such that no one has yet mentioned it. In fact many retail businesses continually advertise their wares are on sale to the point such has become meaningless.
SALE !