Maybe they haven't updated or change the pricing ?
Not sure if that's one of the possibilities.
You can drop a text to the stable's OKT and ask
And yes as what bro Shelliot mentioned,
can join their telegram page to check out for more promos.
Speaking of that when I was browsing,
I chanced upon Xylina through X-Factor's Telegram page anyway.
At that point of time I wanted to book her then luckily
got this TGIF promo price going on, so as I thought why not I just go for it
Here is the screenshot I have uploaded here :
Hope this clarifies ! Cheers ! Happy Bonking bros !