Non stop harassment

<p>I've been getting non stop smses and phone calls from these ****s. When they call, they want me to confirm my details. Like I tell them every single time, you are calling me, you can give me the details that you have and I will confirm whether or not it's correct. I then get told I'm not cooperating. When I call them back,majority of the time they can't pick up my ID number. The times that they've managed to pick it up, I've asked them to sent me details, contracts and payments of the supposed debt - which they fail to do, yet I still get harassed??</p>