Lifestyle legal ******* allegations

I have never in my life ever dealt with these people or the company but now a of a sudden they keen on sending me threatening sms's. Never even a call from them. I don't know who they are. Someone seems to me is trying to use my name in something bad. I sent then now several emails that they must call but they ignore it totally. I just received a sms now again they going to take me to court... For what.? I don't even know.