I went there in 2008, paid the fee and, pardon my French, was given a PFO after phase 3 of the selection process for their 'Wings' cadet scheme. Afterwards, my request for feedback was answered with the following lines:
Thank you for your email. We regret that we do not supply feedback, where we have said no to reapplication. May we refer you back to the advise we gave you about self analysis of the day.
Regards CTC Wings Selection Team
Until today, I can't tell whether my English proficiency or lack of it played any role in me being rejected.
I think you'll understand CTC are not particularly in my good books after this, and I'm willing to admit this disqualifies me at large from giving objective advice with regard to them. However, I would recommend to keep in mind you are approaching them as a customer. I think as long as your money is good enough for them they should be able to live with your accent.