I refer to your article about the Pokemon GO discount at brothels on Lorong 18 in Geylang.
I can confirm that I went down there yesterday evening and presented my phone to the Mamasan, and she verified that I had a snorlax and was eligible for the 20% discount.
However, the price I was quoted for a one hour service was about 20% higher than what I usually pay in Geylang - so I think it's a bit of a trick by the brothel to profit from the Pokemon craze.
If want to do a promotion, do it all the way lah! Do it half f*ck think we stupid?