The sellers usually release Bitcoins as soon as they see your payment, which can sometimes take an hour or two. If you've paid but are still waiting there is nothing to worry about, for all trades are protected by escrow and the seller cannot run away with your Bitcoin.
If there are any issues with a trade and the seller won't release your Bitcoins, you can dispute the trade and provide your proof of payments on chat box, our Remitano support will resolve it. When a trade you're involved in becomes disputed, you'll receive an notification and an email, in most cases simply starting the dispute is enough to get the attention of your trading partner. A disputed trade is usually resolved within 24-48 hours. We can find out more about our trading policy at: https://remitano.com/au/policy/trading_policy
A dispute can no longer be re-started if the Bitcoins have been released from escrow.
If your trade is released, so you can check your address in https://blockchain.info/. If the transaction is settled on Bitcoin network, so you need to check with your wallet provider. Normally, they require few confirmations before crediting for your account.