Bad attitude and rude

I received a call around 18:00 from someone claiming to call me from their legal department regarding my card.he wanted to discuss the card payment which he claims that I didn't do. I explained to him that I pay my card via cash from the bank and I have already paid. He said that african bank don't use that method anymore because no one came to my work to sign that I should pay cash. Mr Buthelezi from their head office CEO office recommended that after I had problem with debit order and he confirm that I can pay cash via email. The guys that called me said that the CEO office don't know anything and they in their department are the only people that can assist. How the hell is he to say that and why would he call me during the time with my family to say stupid thinks like when they recommend cash when I had issue. I still have broken pedals I bought from furniture city which they didn't fix even after I settled my account befor time. PLease don't call me or send rude stupid people to me.