Seems like the referral promotion is still around:
https://www.apps.asiapacific.hsbc.c...d_init&hidden.srccode=&hidden.type=VI_landing
*Terms and conditions of HSBC Visa Infinite Credit Card Referral Programme 2012
(1)The HSBC Visa Infinite Credit Card Referral Programme (the "Programme") is valid from now to 31 March 2012, unless otherwise specified.
(2) HSBC Visa Infinite cardholders will receive the 5,000 HSBC Rewards points for every friend/family ("Referee") that they have referred to the Bank and whose application for HSBC Visa Infinite credit card has been successfully approved. With 3 or more successful approved applications, the referral will receive a one time bonus of 15,000 HSBC Rewards points.
(3) The referral is considered successful when the Referee completes and submits the application by 30 April 2012 and the application is approved by 31 May 2012.
(4) If more than one referrer introduces the same person whose HSBC Visa Infinite credit card has been successfully approved, only the first eligible referrer who sends in the referral form will be entitled to receive the 5,000 Rewards points.
(5) The referrer shall consent to HSBC disclosing his/her name to the Referee whom he/she had referred.
(6) Referrers cannot refer themselves for the Programme.
(7) There is no restriction to the number of referrals as long as all applications submitted fulfill the terms and conditions of this Programme.
(8) HSBC has the right to exclude anyone from this Programme in its absolute discretion. Rewards points will be credited to the referrer's main card account by 15 June 2012.
(9) HSBC is not a supplier of the products or services redeemed under the vouchers and will not accept any liability in relation thereto.
(10) HSBC's decision on all matters relating to this Programme, including without limitation on the time of receipt of the referral form and application forms by HSBC is final and no appeal or correspondence will be entertained.
(11) HSBC reserves the right in its absolute discretion to vary, delete or add to any of these terms and conditions of this Programme or change or withdraw the Programme at any time without giving any reason or prior notice. In case of any dispute, the Bank's decision is final.