Recently I've sent $20 for a trade but even after 48 hours its not confirmed yet. Are you guys too facing this issue with bitcoins?
First of all you need to paste your bitcoin adress from or for you made transaction .
It may be possible that you didn't pay sufficient transaction charge for your transaction amount .
Secondly it may be possible at the time of transaction the node in bitcoin ( block of the Bitcoin node ) were not all online .
So probably it may be possible your transaction is not involved in the block ( but this condition usually not observed by the most of the transactions)
Third possible reason is , may be some problem facing by the trading site , that didn't count your transactions .
So here I will suggest you to see the confirmation status if all thing is good then contact trading site .