Yes, my deposit was successfully sent from my end, but i did not know that for it to reflect on their exchange,i had to send using the memo alongside the address provided by the exchange.
My thought on this is that, for the fund to reflect, it would be manually processed by the exchange, but because i did not send it with the memo ID, i was denied the fund.
some exchange using the same address to deposit. so, to differentiate your transaction is with memo ID. like stellar lumen, you need memo id to send it into exchange.