Before we married, my husband promised to provide a certain standard of living, but now he has broken that promise. What should I do?

Promises and conditions agreed before the akad are not light matters; the husband is bound to strive to fulfil them according to his means. Start with a frank discussion: is he unable, or unwilling? Each needs a different solution. If his finances have truly changed, negotiate realistic expectations with compassion. If he is able but neglectful, remind him kindly that fulfilling your rights is a responsibility, not a favour. Keep a record of discussions and any written conditions. If your rights continue to be ignored, a sulh officer or the Syariah Court can help assess and resolve the matter without needing to become enemies. See relations between co-wives.