How can i cancel my pending withdrawal BTC of $1,240. Its been pending for 2 days. it has no confirmations and on the blockchain it says it receives 0 and sent 0. Someone PLEASE help me!
You can not cancel the transaction, but what you can do is to spend that same UTXO to a different address of yourselves (effectively a double-spend).
The reason it has no confirmations is likely that the fee is not sufficient for miners to prioritise your transaction in their mempool. As long as it has no confirmations, you can still double-spend to an address of your choosing.