Few days ago I was day trading Revain $R on Kucoin exchange when I saw great opportunity for crypto arbitrage. So I bought some R on Kucoin and wanted to sell it on Cryptopia. Withdrawal from Kucoin was really fast but deposit on Cryptopia was lagging. It took more than 36 hours! After I read their support forum I discovered that you should check their Coin info page https://www.cryptopia.co.nz/CoinInfo where you can see wallet connection and their block height.
Then you should compare it with last block on your block explorer -> in my case - Etherscan.io.
And you see, their wallet is 5095972 - 5093200 = 2772 blocks behind. So it will take more time to process it.
Happy Trading!