Harris & Harris, Ltd. Debt Collection Complaint

Harris & Harris, Ltd. Debt collection department,

I do not know Cont'd attempts collect debt not owed Debt is not mine Texas

I am frequently called by Harris and Harris at my home landline. They leave a vague message of attempting to collect a debt [ no name of who they are attempting to contact ] with instructions to call a number that is a long distance number. Even if I answer the call direct when I am home it is the same recording to call the number back. This has gone on all of 2016 and almost every day of a given week. I initially called the - number to ask to be removed from the system robo-call or whatever it is. The line leaves you on hold incessantly and runs up time and I hang up. I have no debt or owe anything that would be in collections.