Sterling Window Systems

I called to make an appointment for an estimate. Sterling Lance Jr called me back and said he could come on Thursday between 2 and 3pm, I agreed. Tuesday he called at 3:20 and said he was running late and he was 45 minutes away, if it would still work with my schedule. I agreed. He came collected the information he needed. He stated his company did not make the half round windows need but he had a supplier that did but he would need a couple of days to email me an estimate. I called him on day 3 after no reply via email. I ask when I could expect an estimate. He replied, "I told you I would need a couple of days." I responded it was now day three. At this point he cut me off and stated, "you need to go with someone else, I don't need customers like you and hung up." I would not let this company install windows for me if they gave the to me for free.