After littlefaeriegirl pointed out, I went in again to the site and read their "terms and conditions". What a miss!
under Description of Service:
"The user is charged $6.60 for the love reading, $6.60 for the horoscope club joining fee and $6.60 for the horoscope. The horoscope is sent out twice a week at $6.60/message."What the...? My bad, from now on, I should read the "T&C".
Now, when I recharge my prepaid account, the first thing I should do is to send an SMS saying "STOP" to 19776656 to stop all these menaces and financial losses.
The moral of the story, everyone is this:
You can do something wrong, then learn the right thing.
Watch someone doing ...and you learnt. Didn't you?