Wesbank congratulations, you have managed to take incompetence to ludicrous levels

I have been receiving at least 3 calls a day from Wesbank for about 3 weeks now, asking for someone I have never heard of. I explained that to them the first, second and third times they phoned each time telling them that they had the wrong number and to delete it from their system. They stated they would. That hasn't stopped them phoning non-stop since then. What the st*ff is wrong with you Wesbank. What are the chances you could set up competent systems, or do you simply not give a d*mn.