I had my battery replaced in my 2011 Mercedes Benz and after trying to drive home from work a new light alerted on my dashboard and I could no longer accelerate. This has never happened and I had no dashboard alert prior to needing a new battery. I called back to 1-800 Battery to see if someone would come check to see if it was installed properly or if a certain reset was needed in order to get my car working normally, whoever I was speaking to would not help me and only said for $99 someone can come check the battery. I told him the battery is fine, they just replaced it, he kept saying "Umm" and wouldn't offer anything other assistance. I asked for the manager, he said he wasn't in, even at 10:38am on a Tuesday. I offered to speak to his voicemail even and he wouldn't do that. He said he had my information and he would call me back when the supervisor came in. This was yesterday morning and still no one has reach out. Extremely unprofessional and if you aren't sure you fixed a certain call then you should not be working on them.