This company keeps calling me for a debt allegedly...

This company keeps calling me for a debt allegedly owed to the Suez company. I take note of all phone calls, and before that emails, with illegal content. In addition, I approached the Suez company, I owe them nothing. I will therefore file a complaint against this company and invite you to beware of their request for payment to be made by telephone! Such relentlessness amounts to harassment, which is fraudulent moreover.