How long should it take?

I dropped off my exhaust manifolds a week and a half ago at a small local shop to be blasted and powder coated. I haven't heard anything so I called for status yesterday and on the third time I called late in the day someone finally answered the phone and she put someone in the shop on the phone. The guy asked me what I had left there and that he hadn't started them and then he asks "What are we doing to them for you". I told him and he said I'll start them today and they should be done Wednesday. I guess I'm expecting to much and thought they should've been done already and for him not to know what my stuff was even doing there was a little annoying. I guess this is the way businesses work these days. I'm sure 1/2 the issues is me since I really didn't dig into it when I dropped the manifolds off and I am definitely old school in the then and now ways of life. Any time I leave something at a shop or service and I leave my number I rarely if ever get a call about my job and I always have to call them.......