2ND TIME MY BUILT IN MICRO STOPPED WORKING

I HAVE LOGGED A CALL 4 WEEKS AGO, UP TO DATE IT HAS NOT BEEN REPAIRED. HIRCHES LOGGED THE FAULT TECHNICIAN CAME INPSECTED MICRO, SAID HE WILL BE BACK THE NEXT DAY. 4 WEEKS AND NOBODY SHOWED UP. LAST REPAIR TOOK 2MONTHS. THIS TIME THEY KEEP SAYING SOMEONE WILL CALL ME BUT I AM STILL WAITING, AFTER ESCALATING MY PROBLEM TO HEAD OFFICE. <br> <br> <br> <br> <br> <br> <br> <br>