I just received back a 1847 large cent the note was PVC I called and they told me that CAC will not grade any coin with a waxy film ? so they still charged me 20.00 and returned the coin I looked at the coin is did have a sticky film on it ? but don't they clean the coins anyway still to send back and charge for the service was something I was not okay with any one else have issues with sending coins into grading service?