Someone is using my MC/DOT number

Please help advice
Some one is using my MC and DOT number and my company name and my address, every single day for now about 2 months at least 3-5 different brokers call me telling me that I booked a load with them and they need to know the ETA for the pick up when I tell them is not me because I’m the owner they tell me a guys name and the broker sends me all paperwork that the fraud people filled out and it says my MC/DOT number address company name with computer signatures everything is my on the paperwork accept email address they made up and phone number, now they also have certificates of Insurance with 3 different policies number non are my it doesn’t belong to me I have send it in to my insurance agency’s and they said is fake anybody can tell that is fake but apparently the broker can’t the fraud people take the Loads under my mc dot number than sell it to a different company driver and they take the Loads, now the scam fraud people when they get their money they never answer the phone and that’s how broker finds me on safer website and calls me, the fraud people always every time ask the broker is advance pay as soon as Load was pick up they get paid , now the driver who pick up the Loads sometimes has correct paperwork where to deliver load sometimes has fraud paperwork where ever they want the driver to send for example load was picked up in California supposed to be delivered to Florida but the Load ended up in Texas than the broker calls me asking me what the Load is doing in Texas now they try calling the scammers no answer because they got their money so they sold the Load to a driver who posted their truck as available, than the broker finds me and calls me if they would to their job the broker in the first place go on safer website to check the information and then book a load , now the driver also gets sometimes correct adress where to deliver the load sometimes not because the also give the driver sometimes fake paperwork, the fraud got so much money out of brokers and everyday is different brokers and out there is millions brokers he can only take or scam the broker once and moves to someone else, now I have reported to FMCSA to DAT to police to Insurace to Dat Loads to Trucking Loads everywhere no body can’t do anything the FMCSA said is under investigation now how long is going to take they don’t know I reported this right a way to them 2 months a go and I call them every week to see is there anything but no still investigating it could take a very long time they said to me I don’t know who else to call what else to do , because they still take Loads money almost every day I know that because brokers call me I have a lot of carriers package the broker have send me
Please please does anyone know it what to do
and the carrier packed they fill out is not my certificate of Insurance and is not my EIN number on W-9 form .. but will not stop
and yes I have asked the FMCSA to change the MC and DOT number but what is the point because is public anyone can find online MC DOT number
Please help