The sellers usually release Bitcoins as soon as they see your payment. Sometimes there can be unexpected delays with bank transfers and other online payment methods. You can keep touch with the Bitcoin trader in your profile Dashboard
. You find your old Contacts there, grouped by Active (open trades), closed and cancelled. You can still message the seller even if you cancel your trade.
If it is an online trade, there is nothing to worry about, since the escrow will be automatically enabled. The page will clearly indicate the status of the escrow.
If you are buying Bitcoins online, you can start a dispute after 24 hours
if you have marked the payment completed but not received your Bitcoins.
If you are selling Bitcoins online, you can start dispute after 72 hours
In case you trade with a new buyer who has zero feedback, the dispute can be started 6 hours
after the payment was marked complete.
The time in all cases is counted from when the trade was opened.
Once you've initiated the dispute LocalBitcoins.com support is automatically contacted and will resolve it.