REO Pro Services Residential Roof in Corpus Christi TX unpaid San Clemente California

My company, HandymanOfCorpusChristi, has been doing various residential foreclosure preservation repair jobs for REO Pro Services since April 2013. In Sep 2017, Nichole Haeberle, my contact, asked me to reroof a foreclosure residential property at 3741 Brookhill, Corpus Christi TX 78410.  Everything was completed and inspections done and invoiced Oct 24, 2017 for $5,730.  There was a down payment Aug 31, 2017 of $2,500 so there is a balance due of $3,230. In Dec 2017, Nichole issued another work order for tree trimming for 4613 Odem, Corpus Christi TX 78415 for $250

There is $3,480 due and payable. There has been no response regarding payment of these invoices either email or phone to Nichole@reoproservices.com,  949-388-5200, Casey@reoproservices.com, 949-293-2054, Heidi@reoproservices.com   or Dennis@reoproservices.com although Dennis once replied he would forward my payment request to Nichole.