NHTSA Complaint #11620445 — 2019 RAM 1500

I purchased my 2019 Ram 1500 in Sept 2018. I have had continuous steering issues since the day of purchase and each time I've complained over the past years nothing has been done by the dealer to address my problem. When the truck is warmed up and you're driving over 50 mph there's a "catch" or spot that seems to have a rough spot when steering to the left. It's fine when turning right, only when turning left does it occur. It's progressively getting worse and as the truck now has over 36,000 miles, (43,00 at time or writing this) the dealers are not interested in looking into my issues. I have made at least 5 or 6 complaints over the years and each time have been told they'll look into and get back to me. I feel now it's reached the point where it's not all that safe to drive or that the system could completely fail. How do I get Ram to get serious and address this issue. I know there's been time lapses on my part but as an 87 year old, time gets by me.