Apple said it was working to "quickly identify and cancel any fraudulent transactions" possibly linked to one of its latest iPhones, the pre-sales of which started on Friday night.
This came as SAR residents reported on social media having been billed for multiple credit card purchases for just one order of the iPhone Duo or, in some instances, no such transaction at all.
Some of the transactions involved HSBC credit cards.
Police have received more than 100 reports of suspected unauthorised credit card transactions, involving at least millions of dollars, according to sources.
“All current iPhone Duo orders are being reviewed before they are processed,” Apple said in a statement.
HSBC, for its part, said it was aware of online discussions involving its credit cards.
Its spokesperson said customers would not be liable for duplicate transactions and that the bank will identify and cancel them.
A similar incident happened last month during pre-sales of two other iPhones, with the total amount involved surpassing HK$30 million in suspected credit card scams.
Edited by Azam Khan
