Quashing Of 498A

My wife and I entered into mutual divorce in May 2018 under H'onble Delhi Distt Courts, after a settlement deed of 15 lac out of which 5 lac equal installments to be paid at the time of 1 motion, mutual divorce and quashing of 498a and 406/34. my ex-wife is not cooperating in 3rd step and whenever date is there in H'onble high court of Delhi she either remains absent or creates excuses which are deferring quashing, it seems after consuming 10 lac she will not cooperate for quashing, H'onble judges say that it will only be quashed under consent of my ex-wife, but in settlement deed it is written if she will not cooperate she will return entire money. Please guide what is outcome how will I get relief, moreover she has started defaming me in calling my bosses in office and narrating false stories. Am helpless since settlement deed say we both cannot file any case against each other till quashing proceedings are over or it will be a breach of contract of the settlement deed