What is the Islamic view on claims of a cartel in funeral management that makes excessive profit?

Summary

Managing the deceased is a communal obligation (fardu kifayah) that falls on family members, and if there are no heirs, the responsibility passes to the Muslim baitulmal. Taking excessive profit from funeral services to the point of burdening heirs must stop, as it conflicts with human dignity and may amount to wronging fellow Muslims. Withholding a body because costs remain unpaid also conflicts with the requirement to handle burial promptly. Muslims are called upon to ease the affairs of others and help one another.

Written in our own words from the original fatwa — check the source before acting on it.