AMERICAN HOME SHIELD AHS- A/C went out in June thier contractors could not fix, we opted for the option done what was ask and still do not have pymt Memphis Tennessee

In June 2 of thier contractors came out.  We paid the service fee to first contractor.  He could not find the parts nor could AHS.  They sent a 2nd contractor who determined we need a new blower which would include many other things ($1130) above what AHS was going to pay ($762.19).  We ask for the option to get the $762.19 and find a contractor.  We told to get the unit fixed first and send the paid invoice.  We did it cost $950.  The invoice has been sent 3 times. Numerous calls made to be left on hold for hours at a time.  I have instant messages from them explaining how to sent the invoice, everything was exactly as we were told. Now they are calling the contractor numberous times harrassing them wanting the invoice written up differently.  The contractor will not talk to them any longer.  We are out all of the $950.  AHS refuses to pay us.  The extra $1130 thier contractor wanted to charge was all unneccesary things.  I have emails and IM messages if needed.  Our biggest issue is we were without an A/C far almost a month in Texas.