Sadly but Ethought, CoinExchange.io admin dont reply.
May be he is extremely busy and have any urgent problems on CoinExchange.io, or anything else, dont know.
We cant wait more and made new plan without any required actions from CoinExchange.
(It created with the support of team and active members)

We will launch new contract without bugs and with improved security, will burn too big premine and decrease it to 10% as it was planned at start.
So there will be absolutely same amount for investors, and near 80k Hubcoins will be reserved for CoinExchange.io when he finally gets in touch.
Premine and distributed amount will be decreased much, from 250k coins to approximately 8k.
My part will be near 800 coins, and amount which will be distributed to another developers will be near 7200 coins. (10% as it was planned at start.)

Tomorrow or 1-2 days later we will launch new contract, will start work to adding it on other exchanges () + create our own exchange service.
We will continue poking CoinExchange.io too, investors will be able to withdraw funds and get same amount which they bought.

Now we stop waiting answer from them and just continue work.
Filling ICO tracker (650 ICOs for now), improving design, launching new contract with decreased premine etc.

(One of early design examples. We continue experiments and will prepare some prototypes, then will choose best design and implement it to website)
We will accept Hubcoins for ICO tracker, for moving ICOs upper on list and some services too.

As amount of Hubcoins outside of CoinExchange.io will be very few, only 8k, it is expected that price will increase much, CoinExchange.io will get massive feedback
and he will have to change id and enable deposits/withdraws anyway.