The following is just a quick one-paragraph answer. It doesn't have a world limit. It just needs to be enough text to provide clear answers. Thank you.
"Research the doctrine of promissory estoppel online. Use an actual case to help you discuss the following questions:
• How does this doctrine act as an exception to the elements and requirements of a contract?
• Why does this doctrine exist?
• Did the court reach the proper decision in the case you discussed?