Called and no message left.  Judging by the other posts its garbage

National Dealer Services...caller claimed this was a “courtesy” call to extend my auto warranty.  What is the most irritating is that they started calling me the day after I used Safelight to repair a small crack in my windshield.  Which means Safelight sold them my information.  This company has “borrowed” the name from a different company called Interstate Dealer Services, who has tried to sue them to stop using the name.  National Dealer Services is located in Florida, but they spoof their number to appear with an area code similar to the people they are calling to fool them.  Don’t buy it.  They are scam artists and change their name every time the FTC tries to shut them down.

Interstate national dealer services operates this scam business out of GA.  They won't remove your # even when they tell you it is the final call.  Call them back every few months and waste their time for fun, a quick Google search will point you in the right direction to their number.

Do not call violator. Hung up.

National Car Dealer female caller mumbles about Chevy Malibu hung up when I told her didn't own one