S GARFIELD

I purchased my Weedeater One from Home Depot Online March 30, 2010.
Three weeks ago my brake cable, part #428460, broke where it connects to the Arm Clutch (part #42916). I called the part replacement 800 number on 8-25-11 and ordered the cable.
On Sept. 1, 2011 Billiou's Inc. in Porterville, Ca sent me part #440855. It was obvious the part was not the proper brake cable or anything similar.
I have called them three times now in an effort to get this straightened out and get the part replaced with the right cable. They have informed me there is a "problem" with several orders regarding this replacement part.
My first question is whether this part is still under warranty. The second question, is there a problem supplying this brake cable.
My closest city is 60 mi. away in the 96001 area.
I have two pieces of property and depend on this equipment to maintain the grounds. Obviously I have not been able to use my Weedeater One for three weeks now.
Can you give me some advise or assist me in getting this matter resolved?

Sincerely.......Steve Garfield
530-736-3219