Request to remove comment of phone number

From this no I received a call showing I m from Canadian embassy - as u apply for Canadian visa and interview about 15 mints my all detail and last he asked me about my credit card- I give him local card of Saudi - then he told me no it is not acceptable - you should give international pay credit card no. He asked me first 6 digit and he tell me that this is local card. It can't cover int'l facility. Then I asked our friend he told me don't give him such info. So i m still doubt about this no. and be careful.