I've never had a bit of delay or trouble with either website...Knit Picks or WEBS. The yarn and/or accessories take a minute to arrive...I live in Washington State...however, not so slow that I'm wondering where my order is. The yarn arrives in respectable time, IMO.
I've never had a bit of trouble getting either website to respond to a call or email either. WEBS is particularly quick to respond to email.