Due to Steam's trade policy, CS2 items require a 7-day processing period before being credited.
General Rules
The seller has at least 30 minutes to accept a trade on Skins. If the seller does not accept within this time, the buyer may cancel the trade.
Once a seller has accepted a trade, they have two hours to send the offer. Failure to do so will result in a fine and a warning.
Punishments Include
If the seller does not accept within 24 hours and the buyer cancels, the seller is fined 5%.
If the seller sends a trade offer but the buyer declines it, the buyer is fined 4% and receives a warning.