Get a new simcard and a new number lah...
Only way is to consider changing Telcos to either Starhub or Singtel.
It's not an easy thing to do since I would have to notify my banks, friends, .... etc of the number change.
I still have a landline but can't use it to send & receive SMS.
After going through all this there is no guarantee that this problem will not occure with Starhub or Singtel

So many cock ups in Spore lately. I wonder what is going to breakdown next
