Ok So I bought coins that are now expired.
Does that mean that they cannot be traded and I have lost all the Bitcoin I invested in them?
what this mean expired, coin is not expired and not use limited time
if youre coin delisted in exchanger you can try in another exchanger, you only withdraw balance youre coin
if another exchanger never found accepted trade youre coin, youre lost youre bitcoin
sugestion if you want altcoin trading, choose is good coin, old coin, and good volume transaction