Damn... :(

im running a brand new neu 1515 1yf ,maxamps 5000hv 11.1v x 2, two hyperion eoso606i chargers ,in a brand new erevo,i pre ordered a MMM in july recieved the first one in a about 6 weeks, got about 3 min,called gotta replacement,three weeks later,i got about maybe eight min out of the replacement,,and it just sits,i have app, $2300.00 invested in a truck that sits on the shelf talkin about a shelf queen!! does anyone know what i can do???? is it because im runnin 6c that the mmm is failing i cant afford too buy another set of lipos like 4c,i thought i could go 6c with this esc,does anyone know of another esc that could handle what motor and lipos i have thanks ,....