NHTSA Complaint #11438585 — 2016 FORD MUSTANG

I have had my 2016 mustang for 5 years already with 29k miles , my warrantee has expired. I recently notice I had check engine light for P0456 Evaporative Emission Leak. I took the car to get smoke test by my local shop mechanic and it came that there fuel vapor coming out of capless filler neck,since every ford model after 2013 don't have gas cap nomore I would have to replace the whole gas filler pipe which is around $500 for part and labor. In other cars you can just change gas cap for 20$ buh since in my case my car doesn't have gas cap i would have to replace the whole gas pipe filler and ford doesnt offer any gas cap for my car. I feel like if i do change my gas filler pipe , mabey couple years from now it's gona start giving same check engine problem. I also feel safety concern i do live in Arizona where gets really hot and with fuel vapor coming out capless filler it might cost a fire. I have 3year daughter that likes to ride in my mustang but i don't let her intill this gets fix i don't want her smelling gas . Im hoping with this recall ford can fix the issue and work on better design and or make a gas cap to fix evap leak without having to spend hundreds of dollards.thank you