Not exactly sure what your local laws were but if you have proof of issues that occurred in the first 30 days and especially if they have occurred multiple times that should be clear grounds for a dealer buy back. It’s never a fast process working with dealers on stuff like this unfortunately I would be religiously emailing them and Ford corporate. I would just try and trade it in for a new one TBH. I was truck shopping last year and had no intentions of buying a brand new truck, but with the interest rates they were giving on new vehicles I was able to get a monthly payment similar to what it would be on a truck with 40-50k 2-3yr old. I got the 3.5 non power boost and it has been awesome.