I am new to hobby, but would like to get some suggestions. I am having difficulties getting in touch with the K-agencies. They don't take calls, reply emails, and respond to text messages.  

I am sure I am not on any blacklists as I am still new. Do they have any preferences to customers ethic background? I've provided my info including that in the email/text. Could that be the reason?

Thanks for advice.

I've heard that they are generally reluctant to engage black guys and Indian guys.  Not sure if this is true or not, as I am neither.

I've had trouble, too though.  Contacting them can be a black hole.  What I've had the best luck with is saying exactly who I want to see, when exactly I want to see them, and I mention that I'm a white/professional.  In other words, get everything into a single message.  Even this doesn't always work.  Good luck.

Hi there, this is Redhotflowers  
 I am so sorry to hear that you are having hard time contacting some K-agency.  
Well, we are very easy to contact and we welcome anyone who is a gentle and a nice person like you. So please try us, you can check our website at www.redhotflowers69.com and also email us at [email protected] if you have any questions.  
 Hope this helps you and you have a wonderful day! ^^  
 -redhotflowers

Like the OP, I'm also very new to this hobby. I just emailed you and would appreciate any help for a newb