I want them to leave me alone.

This Attorneys are abusing me for no apparent reason. They were instructed to demand an outstanding balance of a loan I took from Finchoice, which I paid up and received a paid up letter. They are now sending me messages alleging that I owe more money on another Finchoice account, which is highly impossible as Finchoice would never give out a loan whilst the other is still not paid. I just need them to back off as I have forwarded the paid up letter to their agent Ms Zalna on several occasions.