Hi,
I invested in scrypt.cc a long time ago, I now want to withdraw my 0.4 BTC since I read the scam warnings, I put in a withdrawal request over 2 days ago now which said it should take 20 minutes, I have also sent a support request, I have had no withdrawal or contact.
Do you think I may have lost my BTC this time or are small withdrawals still happening?
It's likely lost. If the withdrawal gets cancelled and returned to your account you can try small withdrawals (0.0x BTC) and some might get through.