Christine Robinson owed a debt of $25 000 to Black Crow Music Inc (BCMI). Because she genuinely could not pay the full amount, Christine asked the company whether it would be willing to accept $15 000 in complete discharge of the obligation. The company initially took pity on Christine after she demonstrated her seriousness by placing her request in a document under seal. It therefore agreed to her proposal, on the condition that she pay $15 000 within one week. Three days later, however, BCMI had a change of heart and told Christine that it expected to receive the full sum of $25 000. Three days after that, Christine presented $15 000 to BCMI. The company took the cash, but only after repeating its intention to collect on the entire debt. Christine, however, believes that she is debt-free and that BCMI no longer has any claim to the outstanding $10 000. Which party is correct? Explain your answer.