Hello my fiend, simply you can't. Actually te value of ytc in etherscan is 0.000, non value, so if you try to get a withdraw your money goes to 0. That's why all withdrawals were canceled last week. And thinking that you can withdraw them, there is no market requirement or exchanges that handle ytc, so you will not be able to do the exchange. The only way is use the GDC marketplace and GDC exchange.
I understand you friend, I'm in the same, invest and not be able to recover your investment, and apart, they force you to only be worth in their ecosystem. The only way, trust what they will do with our money.
Puedes hacer las solicitudes, pero en el momento que pisen tu billetera de Myetherwallet valdrán 0, como puedes ver en el siguiente link: https://etherscan.io/token/0xa1835117... En efecto te van a responder y quizá si te las envien, sin embargo no podrás intercambiarlas ya que no hay exchange que cambie YTCs.