Ivan, I am unrelated person here, but I have to tell you your behaviour is offensive and unacceptable. "Alibi"??!! Are you a prosecutor, or you feel like one..?

1. This guy clearly told you the DOT transfer is internal, and you won't see it in blockchain. Cryptopia has no reason to make transactions on blockchain just because one of their users user transferred balance to another one. Exchanges do not tie an account to a single address on blockchain. I can elaborate on that and explain, if you are interested.

2. Please list any reason, which gives you the ground to suspect devs did not pay to Cryptpopia. Listing delay is not a valid reason, as Cryptopia currently is stressed and delays everything. They even officially agopogized for that on their website.

3. I repeat the question from my previous post - please name a new coin listed on Cryptopia recently (in a weeks or so). If you can, then I apologize.

4. Contact Cryptopia, ask them whether they were paid, then and get their answer and tell us.

Once again - I am in no relationship with the dev. Truly saying, I don't even know who is the dev here. I cannot vouch for any of their actions, and have no idea whether they are developing the coin, or are spending time on Bahamas.
BUT - these ungrounded accusations start to sound ridiculous. YOU need a reason to raise concerns. You don't even have one.