I too received unwanted/ solicitation text message to my cell phone which cost me $0.10 from unknown company at phone number 323-236-7214 stating: "Credit card debt $10,000 or more? Please let us show you how to eliminate that debt and lower your high monthly payments. More info? Text back Yes." I've filed a complaint (one page) and you can too with the FCC. This activity is not just annoying but illegal. Here is the form:
https://esupport.fcc.gov/sform2000/formA!input.action?form_page=2000A