Install It Today Zip.Com Does Not Pay Field Techs Minneapolis, Minnesota

I have spent the past 4 weeks trying to collect $135.00 for a job they said they desperately needed done.  I have taken over 20 jobs with them over the past 2 years and started to notice the payments were more and more delayed.  The last one went over 6 days and I contact them VIA email and the did not respond for nearly two weeks.  The finally paid 1/2 of the amount due about a week ago I am still owed $67.50, when I inquired why only half, I was told to contact customer service. Below is the exchange I had to get paid...UNBELIEVABLE!!! 
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Don S (Tech) posted:
new!   Today @ 09:03pm

This is really getting to be unbelievable and ridiculous. I performed a service for you in good faith, and all I expect is to get paid for services. Just like you do. Let me ask you, do you have to write a half dozen emails and make calls to receive your paycheck each week or e/o Friday? If your company needs the $67.50 that badly, keep it as a donation. Please remove my name from your database. I will write this off as lesson learned. I have enough information to file a complaint with BBB other entities to prove my point that Install It
Today rips offs field techs
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Kristin M (Zip Express
Installations) posted:    10/25/2011
10:08am

Don-Please call in to the operations line at 612.412.9395. This will be further explained. It sounds like you played phone tag with John and he did not have the opportunity to provide you with any information. You can also ask for me if John is unavailable.
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Kristin M (Zip Express
Installations) posted: new!   10/21/2011 03:52pm

Hi, Don.

I just came across your note and I did personally see a check with your name on it. If you do not receive this by early next week, please give us a call to verify. You should be all set now for regular payments. Have a great day.

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Don S (Tech) posted:
new!   10/20/2011 11:17pm

Hi John...Sorry I have not returned your call. I am hoping to on Friday. As an FYI, I have yet to receive a check. I usually have funds direct deposited to my account. Hopefully we can talk more on Friday.
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 John S (Zip Express
Installations) posted: new!   10/14/2011 09:47am
Good morning Don,

I just left you a voice message. Please call me to review. FYI- a check will be going in the mail this Monday 10/17/2011.

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Don S (Tech) posted:
new!   10/12/2011 09:34pm

Please REMIT Payment! I did this job in good faith all of your companies expectations, abide by your mission statement you expect of all techs, I have a 100% customer satisfaction rating, I have taken calls on a moments notice, so I am a bit confused why your ignore my request for payment.
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Don S (Tech) posted:
new!   10/09/2011 11:05pm

Please process payment.
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Don S (Tech) posted:
new!   09/27/2011 08:25pm

Please remit payment for this WO. Thanks
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Don S (Tech) posted:
new!   09/25/2011 10:07am

May I get paid for this WO?? Thanks
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Don S( Tech) posted:
   08/10/2011 12:49pm

I spoke to cust on 08/09 and we set app't for the afternoon of 08/10. Ms Epps call into ZIP and advised she will not be available this afternoon. I told the ZIP Tech I will contact Ms Epps and reschedule. I phone the customer and we
set the appoint for early evening today 08/10.