if really AIA BERHAD, then probably they buy the contact from streamyx...

then make it into one of their special services ..

ie : since your a streamyx subscriber for more than 1 year, we could offer you up a plan for streamyx subscriber oni. i work in telemarketing before.

in telemarketing, you can't simply choose one number and say you wan to sell your product. This totally waste of time. However, there is an increase of chance if you notified the customer, what they had done until they can get such offer. Thus ,when they say,'' your a streamyx subscriber '' , it straight away answer the doubt of '' why you call me, no other ppl to call d izit '' something like tat