This company calls and leaves a message without disclosing who they intended to contact and left only a return contact number and reference number. Upon calling back and providing the purported reference number, the XXXX representative advised no direct knowledge and then disconnected the line when I inquired about further information.I called back because it is unlawful for even legitimate collection agencies to continue calling a company or person and fail to provide specific information and acknowledge the purpose of their call. Upon calling back, again the representative ( another one ) suggested it was " Credit Control LLC '' and then blindly transferred me to another representative who after providing the reference number and telephone number now thrice that a " XXXX XXXX '' was the ONLY person familiar with the matter. Now that just sounds like a load of nonsense ... Completely unprofessional and unethical ... I told him since they could n't seem to read the federal and state regulations that govern the practices of these collection agencies WITH COMPREHENSION that I 'd inform CFPB and maybe you all can assist them.