threatrning e mails about money owed to them.

I am receiving threatening mails from the above mentioned company all the time. Stating that i owe them money. They are threatening to have my name blacklisted. The mqn that keeps on s3nding me e mails is Jazeel Chetty. Phone number is ********** . Fax ********** . Of anyone else receives any mails or correspondance from the above mentioned company. Block them immediately. Or if anyone phones send them to the place where the sun dont shine. Thenphone number just rings and rings. So that does no even work. Please do not ever take any calls or answer any mails from them.