Gm financial Not reporting accurate payment status to credit bureau Nationwide

I contacted them Oct and November late last year about this issue and their general reply is that someone would follow up in x amount of days... No one did. I sent another email in December no one followed up about the same issue.... I sent a disgruntled email less than a month ago and STILL NO ONE FOLLOWED UP And then tonight I check my email and I received a general email addressed to all customers meaning I'm not the only person that's complained about them not reporting correct payment statuses. So not only did it take more than 150 days to get a reply they still never directly addressed me concerning this issue by phone or email as their website States within less than a week work of business days.... This has prevented me from refinancing my car because I've never been late but who knows that.... No one but them and even when I contacted them about refinancing the conspirator told me they only do new loans so yawl are holding me up not because of delayed payments but because of your system according to this email that I just received.... I could be paying d**n near $100 less a month had they not been being fraudulent.