Harassment by tracers at workplace.

I do not know what African Bank does not understand. During 2017 3 tracers harass me at my work place and that after I told African Bank please do not phone me on my work telephone number neither send out tracer. I am making monthly payments and as soon as I can I will pay more. But this they do not understand. I am facing a disciplinary hearing at my workplace, because it is not very corporate like if tracers attend your work place and there are other customers, especially if you are also working for a legal company. I have had it. If I loose my job, then I cannot pay them. Is this what they want. I have had it now.