A Facebook acquaintance have highlighted in a Facebook post that the OPT OUT option of Starhub's SMS ad maybe not be working as intended. It seems OPT OUT only works when one complains to the Starhub twitter account.
Wrote on Facebook,
I have received one SMS dated 27 Jun 2013, and if you look at my opt out at 76333 dated 27 June 2013. By right, I should not be receiving any more unsolicited SMSes from Starhub. However, I have just received another unsolicited SMS from Starhub today, despite I have already sent them an OPTOUT. Either they are lying about their optout option, or they are just continuously spamming me with their offers by paying lip service to a customer's complaint of opting out.
If you are seriously going to implement "Do not call" registry, please get something like this as simple to be enforced.
However, Starhub did not update if they fixed their SMS service to actually allow receivers to OPTOUT of Starhub SMS marketing database.
In Singapore, the Personal Data Protection Act 2012 (PDPA) will come into operation and be enforced in phases, with the provisions relating to the DNC registry coming into force in early 2014 and the provisions relating to the main data protection coming into force in mid 2014. - See more at: http://www.pdpc.gov.sg/personal-data-protection-act/enforcement-of-the-act#sthash.PCHWft4g.dpuf