I have used Dollar almost exclusively for the past 5 years or so. I also fly Southwest almost always.
I have been able to use a discount code of SW2358 for many many years which gave me a very competitive rate and frankly has kept me with Dollar.
Recently (the past 3 or 4 weeks) the code hasn't worked and has generated an error.
Does anyone have another good code that will work in thick and thin like SW2358 did?

I would love to stay with Dollar

Any ideas?