I think that there is no way that you can buy that amount of bitcoins with a credit or debit card, those exchanges that are the good ones are not going to allow you to do such a thing, if you are stealing (i dont mean that you are) you can just start a dispute on Visa and that website will lost the bitcoins, that is why they stopped accepting credit and debit cards for buying purposes.
Why dont you use a local exchange? there is a guy who adviced you to use localbitcoins, you must give a try.
yeah. same procedure, i agree with those folks that suggesting to use localbitcoin to buy bitcoin, on that way you can buy as much as you can in a safe way, i think your country are not accepting bitcoin yet so its hard to you to buy bitcoin with anonymous, dont mind the fee in localbitcoin because you can get it back again after the pump on bitcoin.