Harassment and revealing of personal information / Scam?

For the approximately 2 years now I have been continually harassed by someone going by the name of B&D Attorneys with regards to my credit card.

I need to make one thing clear, I have never approached "B&D Attorneys", provided them with any personal information, telephone numbers or any other information. I receive calls several times a month from "Soema" wanting to offer me a settlement agreement yet I have never entered into any agreement with them. I do not know who they are and have never done any business with them, I believe this is a scam. I pay my credit card every month, more than the required minimum and don't understand why they are involved or what any of this has to do with them., I keep getting text messages from them as well, but it does not stop there, my wife and both my sons keep getting harassed by them with regards to my credit card as well (Clearly they have access to all telephone numbers registered on my name) and now they have taken to sending text messages of a personal nature with regards to my credit card and bank account to a company cell phone (not registered on my name because it does not belong to me) which is used by several people in the department, it is not my personal phone! I have responded to them via text message and also to "Soema" personally, telling them that this is not a private number and she must not sent personal information, but this continues. I also told her I am not interested in her offer for a "settlement amount" I once again have no idea where she got this number. Surely a company that claims to be " Attorneys" should know about the protection of personal information act and the consumer protection act?

I do not know these people, I will not provide them with any information, I have seen no paperwork or documentation confirming this is even a legitimate company. And these people never give up, They also use a different phone number every time they call , I already have about 12 different numbers, I believe this is how scammers work. Whenever I get a missed call and call back they ask me to provide my ID number and reference number, I will not supply a scam artist with any personal details. I have had no communication from my bank to say I have been handed over to any attorneys, I am paying my credit card, so why are these people still harassing me after all this time, by mow they must realise I am not going to give them personal details or fall for their scam. I am not that stupid to supply any details to a complete stranger on the other side of a phone. I want nothing to do with them, I have no interest in their deals and I want them to leave me alone. Today they sent a text message saying I have not paid my credit card for October! How do they know what I have paid and what I have not paid? Have they hacked my account? Incidentally I have paid my credit card for October.