There is this product online called the Take Down Remover but it is quite hard to find in stores. They claim to be the #1 removers for dreadlocks and tangled matted hair.
There are hairdressers called Tangled Hair Techs who are mobile-who detangle tangled matted hair and takes out dreadlocks.
Just wanted to get this information out because there is not a lot of good information on the internet on how to safely remove dreads and dreadlocks or very matted hair.