Ooooh my word ... say no more!

I get a call from a company 'Saya' to inform me that my Nashua mobile account is outstanding with a balance of over R4000.00. I never had a account or contract with Nashua mobile that I can remembered in the 1st place. The guy can't even speak proper English, very difficult to understand what he was trying to explain to me. When I ask for the cell number of this account, he could not answer me. He want's me to respond first with an affidavit and a copy of my Id before he can give the cell number to me for this outstanding account.<br> <br> Say for instant that I had a contract with Nashua Mobile a long time ago, that I not even can remember. Why are they phone me know to tell me my phone is in arrears??? <br> <br> I think it is a **** to get my details.