MBD no privacy

MBD give detail to the wrong person by sms. They started pestering my ex husband (divorced since 2001) dont know where they got his number. He explain to them that we haven't had contact for many years. After I have spoken to them confirming my number, which they had on file, and asking to please remove the wrong number they went and send a sms with all the detail to my ex number again. But if you phone them, if you can finally speak to somebody you need to answer a lot of questions to make sure it is you but they send private stuff on a sms without checking. Don these guys just decide to phone people with the same surnames randomly....