Incorrect information furnished resulting in me spending money to purchase additional insurance.

As I have a Standard bank Credit card I contacted the Travel Insurance department as I was undertaking a European tour in August. Was advised by the one Andrea Barry that I did not have sufficient cover as I had a normal blue credit card and had to purchase additional cover - this to very rudely - I was quite taken aback (I have letters received from her advising that my maximum cover was R150k). I enquired how much was additional cover and I was given a quote of +- R750. I shopped around and obtained this same cover for R250 so I purchased this as I required all this information for my visa application. Only afterwards when I contacted Standard Bank Card Division was I advised that I had a Gold card and that my Health cover for overseas travel was R1m - I was extremely angry as this Andrea furnished me with incorrect information and luckily for me I shopped around as if I had listened to her I would have had to spend the +-R750 to purchase additional cover with her. Due to the inefficiency and rudeness of Andrea Barry I would like to be refunded the amount I spent to purchase additional insurance as this was grossly negligent on Standard Bank's part.