I was misled by by hotelclub.com which I want to prevent others from making same mistake.
1) I am a platinum member with hotelclub.com. I login to search for hotel in Hong Kong for 3rd to 8th Dec 2014. I found Empire hotel Wan Chai with attractive price and it stated "member special". So was excited and booked the room without further searching other sites. It cost me SGD$488 (after deducting my member dollar of SGD$47) for 5 nights which is a good deal.
2) After payment made, I found that there is another site, ratestogo.com which is sister company of hotelcub.com. There is a special promo with 20% discount with promo code "long20". When I enter the promo code, which anybody is entitled to use it (does not need to be any platinum member), I was surprise to find that i can get Empire hotel Wan Chai for only SGD$463 after 20% discount, which anybody can get it!
3) I write to hotelcub.com as they have lowest price guarantee policy. They told me that this policy does not apply for their sister company. I cannot get refund of the difference.
As frequent customer of hotelclub.com, I felt misled to believe that their "member special" price is good. I am also disappointed that their lowest price guarantee was a gimmick.
Hotelcub.com had MISLED me. They earned extra SGD$25 from me but they have now lost my trust to spend more with them in future. Hope this will help others from falling into such trap.