Lender changed rates because they weren't going to make enough

[Josh Matteson]

I'm currently locked into a rate in a new home mortgage. Today I was notified that they are no longer going to honor the rate because they are no longer going to honor the program that I was enrolled in. My rate jumped nearly .5% because of this and now I have no time to find a different loan. They are claiming that they will honor the standard rate from the time that I locked. However, that rate is .5% higher than any other loan I was approved for at the time. It feels highly unethical that they basically yanked the rug out from underneath me and put me in a position where I have no other choice. Any advice on how to move forward?