I quote 2 days postage. Sometimes it takes me 2 days to post, sometimes an hour. Depends on work, the time of day, the time of year, the ease of access to the item... Where does that put me in your expectations?

If a seller quotes 5 business days handling then it unrealistic to whinge about them not posting quicker than that. And extremely unfair to ding their stars and/or leave a neg. If you need the item quicker than that, buy from somebody else.

Assuming you read a seller's handling time and don't just expect the item to be posted straight away, ragardless.