Motion specialties

MY SCOOTER STOPPED WORKING SAFELY ON JUNE 15, 2022....JUST STOPPING BY ITSELF EVEN IN THE MIDDLE OF AN INTERSECTION. A MOTION REPAIRMAN CAME ON JUNE 20. HE JUST GUESSED THAT IT WAS THE ELECTRONIC CONTROLLER. I ASKED IF HE HAD AN ELECTRONIC TESTER AND HE SAID NO. IT TOOK WEEKS TO GET THE PART. THEN HE INSTALLED THE PART ON JULY 18. HE HAD NO WAY TO TEST THE BATTERIES. THE SAME THING HAPPENED WHEN I TOOK MY SCOOTER OUT....STOPPED AND STARTED TO BEEP. A VERY DANGEROUS SITUATION. THE CUSTOMER SERVICE REP WAS VERY RUDE TO ME BECAUSE I COMPLAINED ABOUT THE SERVICE. I HAD TO USE ANOTHER COMPANY, INMOTION. THE BATTERIES WERE NOT FUNCTIONING, NOTHING TO DO WITH THE CONTROLLER.