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Hi Panjul, I can confirm both that BK8MAHKOTA and BK8BERJAYA are our affiliate partners (Indonesian) and that email is come from our affiliate marketing
https://www.bk8mahkota.comhttps://www.bk8berjaya.comhttps://www.bk8btc.com is a link for the Bitcointalk forum
Regarding the promotion offered, it is a Reload Bonus
you can check in your account, Go to Transfer/Promo Menu >> transfer from your wallet to the game wallet >> Click Promo Code
Reload bonuse is usually 80% of the balance you transfer and it will require a 3x turnover.
Thanks for the information and clarification, it is clear now because I was skeptical about the email since the sender is using gmail.
I thought that the offer is a free balance but I was wrong since you inform that it is reload bonus which is more reasonable than what was in my mind when I received the emaill.
Means that it is also safe for me to get in touch with this affiliate through the whatsapp number as informed in the email.