Homestar Property Solutions, Energy REO Solutions,homestar property mgmt work completed and never paid my invoice Maple Grove Minnesota

I was called to finish a project they were having trouble completing due to irresponsible contractor. due to my prior experience with Energy REO i dropped what i was doing and ran right out. they always paid and on time so i had no problem with helping them out. I finished the job and submitted an invoice. they called me acouple weeks later with 3 more items needing done on the same property. once again ran and completed new garage door opener etc. I submitted another invoice and waited. they were so thankful. that was july 15, 2014 completion it is now march 13, 2015 my invoice is only $1200. thats pretty bad to not have the capacity to come up with 1200 bucks. I always pay my subs on time, i dont have them work for me unless i have the money first. Dont work for them!