Perhaps the 2 incidents were coincidental, and perhaps something happened accidentally during the repair. Probably the former but the OP didn’t know and was understandibly concerned. She’s not a mechanic. Neither are you or I. She expressed her concern in her OP and asked what people would or what she should do. She did the right thing to speak with the manager about her concerns. Perhaps you can’t identify because you lease cars every 3 years, but the OP’s concern for the coincidental experience was understandible and she handled it appropriately and successfully. The suggestion to talk to the manager is reasonable, and if the manager had not been reasonable or appropriate, expressing her concern to higher ups or on social media is also not unreasonable. I had concerns about how something was handled with our former natural gas provider. I knew I was right and I was frustrated with what happened. Ended up posting a polite post expressing my disappointment on their facebook page. Immediately got a response and was able to talk to someone and explain the series of their errors to someone who looked into it, agreed that I was right, and rectified it immediately. It wasn’t “crazy overkill”. It was successful problem resolution. And if the person had not agreed that I was right, there was still satisfaction giving honest feedback on line and expressing my disappointment with their customer service folks. So its all good. You seem to have leaped to an erroneous conclusion that someone said she should have escalated matters if a refund wasn’t forthcoming. No one said that. She could have esclalated matters if she felt she was not treated well or fairly. Most management/owners want to know that.