Finally settle the case with SONY HK. replied from them below. They top up extra RM2 into my wallet for the extra 20 cents charged due to the SGD currency conversion rate by Maybank credit card... well I guess thats not too bad they admited their mistake.. I gain RM1.8
*****************************************************************************************************
Dear Chris (changym1980),
Sony Computer Entertainment Hong Kong Limited would like to notify you that the transaction 1197619418, MYR 15, you made on 2-Sep-2009 was not processed properly. Due to the billing system error, the stated transaction was mistakenly settled in Singapore Dollars of equivalent amount. The actual amount paid by your credit card in Malaysia Ringgits may vary due to different exchange rate of Singapore Dollars applied by your credit card issuing bank on the billing settlement date.
We sincerely apologize for this billing error. Herein, we would like to offer you MYR 2 extra top up, which is 10% of the above transaction as compensation. The amount will be credited to your wallet on 14-Sep-2009.
Furthermore, we would like to inform and re-assure you that the billing system service is back to normal.
Shall you have any question regarding this notice, please contact PlayStation Customer Service hotline at 1-800-81-4963 (Open 9:00-20:00 Mon – Sun for further assistance.
Thank you for your understanding and continued support of the PlayStation®Network.
Sony HK really took care of things!..you should've bought RM1000 off PSN..then you'd get RM100 (10%) top up from them!!