When Maureen Amirault purchased her first electric wheelchair in 2020, she had been living with muscular dystrophy for decades. Braces and a cane helped, but walking became too arduous, so she got a chair through a company called Numotion. The first few months were great. The headrest fell off, but Numotion fixed it in a matter of days. “That was my expectation moving forward,” said the lifelong Connecticut resident. “But for the past three years, I’ve never been without a repair issue, and I’ve...