Bad Buy

i bought a insignia tv from Best Buy it quit playing after only 2 months . i now have spent almost 2 months trying to get someone to fix it. the repairman that they assigned me to will not call or come and get the tv . i have a factory warranty and a extended warranty but cannot get anything done about my tv. i call Best Buy to ask if i can take it back to the store and get a new tv they said i couldn't take it back.