1990 Honda Accord

I HAD A MECHANIC PUT ON ACV AXLE AND AFTER HE PUT IT ON IT STARTING BURNING OIL, AND WHEN HE LOOK AT IT THE AXLE WAS LOOSE AND OIL WAS LEAKING, THEN HE SAID THAT IT WAS AN DEFECTIVE PART, THEN I GOT ANOTHER PART AND HE REPAIRED IT AGAIN, AFTER HE FIXED AGAIN, I WAS DRIVING AND ALL OF A SUDDEN MY CAR STOP GOING, MY CAR WAS STILL GOING INTO THE GEAR BUT WHEN IT WAS IN GEAR IT WOULD NOT GO ANYWHERE. PLEASE TELL ME WHAT WRONG WITH IT.