Harassing Text messages

I am receiving constant text messages about somebody else account who has not paid the Cap fin account <br> When I first recieved this text messages I called *** on text message and the advisor that i got a hold said that my number was removed off there data base but still I then received a further 4 texts messages in Dec 2015 and 2 text messages in this week of Jan 2016. <br> <br> I am not happy that I was **** to by the agent and also I want these text messages to stop as I DO NOT HAVE A CAPIN ACCOUNT <br> <br>