TexasCHLforum.com

I had a similar situation. I priority-mailed my CHL-100 on the 23rd of Sept. I never received an email saying it was ever received. Finally yesterday I called and was told they just got around to opening it, and there was a problem with my drivers license(I am applying for a non-resident). Anyway, I RSD emailed them a new copy of my license yesterday, and this morning I received a confirmation saying it was received. So, priority mail via USPS took almost a month to be attached to my application. RSD email took less than 24hrs. I asked the lady on the phone if emailing a form after snail mailing a form would cause an issue in the process. She replied that whatever for comes first gets uploaded, whatever form comes second gets compared to the first one. If they are the same, you are good to go, any differences, and they have to notify you and ask for clarification.