How long should I wait before getting annoyed

[JointTech]

I'm going to keep the vendor to myself for now.
I ordered wilwood D52 calipers, 8 lug slotted/drilled rotors, brake booster and m/c, and braided brake lines.

I ordered by phone and paid with CC. Even paid a 3% additional fee to use my AMEX which I'm sure is against the AMEX terms of service for a company. (i accept amex as well)

I was told I'd get an email invoice confirmation and a follow up call to verify i got the confirmation. Hey great that sounds good. they care that communication is happening.

I didnt get the email. I did get the followup call. it went to my VM. I called back and that girl was out but somebody was supposed to follow up the next day. after a week I called back and said I just wanted an order status. some kind of ETA on the parts.
The guy said calipers were just ordered and he want sure on the rest of the stuff but would email me.

I waited another week with no response so I called back and talked to the owner (he answered, i didnt harrass).

Said the calipers just got in and they were shipping tomorrow.

Then the stunner "the other stuff comes straight from CPP and we dont have an eta."
Hmm so I asked well a week, a month, a year?
he laughed and said its CPP might be 20 years. They dont get orders out very fast.

so a few days later my calipers showed up.

3 weeks from order date and i still dont have the rest of my stuff.

If I had known the vendor doesnt stock or have any idea or control over most of the items I would have probably looked elsewhere. But I got beat over the head here for not using board sponsers so I went with this one this time.

The guys seem nice enough and I realize its not really in their hands at this point, but I'm starting to get annoyed and want my stuff.

when would you start harrassing somebody?