unwanted calls

I have no relationship with this company. I have given them no permission to call or contact me. Yet, 5 to 7 calls per day. Buying leads and calling the public is still not a good practice, I realise you don't care, but still bad and I will not do business with you for home, or business. Harassment is not a good strategy. I would like to know how you got my number, since I untick all marketing calls and materials.