Withdrawal of funds, both cryptocurrency, and fiat, may be temporarily unavailable if the transaction for the delivery of funds is initiated when the cryptocurrency is credited to the balance at the same time. From the moment the cryptocurrency is credited to the balance and until the moment it is fully credited, the number of funds to the next balance, equivalent to the amount of the credited cryptocurrency in double size, will be reached for the calculation (trading), but will not be reached for receiving.
The withdrawal will be technically possible when the transfer of cryptocurrency funds will be completed - a certain amount of confirmations will be received by the network. It depends on the type of cryptocurrency:
1st confirmation in the XPR/ХLM/PTI/ZAG/WXT/TON/EOS/VLX/SOL transaction network;
4th confirmation in the LTC/ETH transaction network;5th confirmation in the NEO/GAS/СRON transaction network;
6th confirmation in the BTC/DASH/USDT/BCH/BTCV transaction network;
10th confirmation in the SMART/QTUM/ONT/ONG/HAI transaction network;
12th confirmation in the DCR/DOGE/NEAR network;
15th confirmation in the ADA/LSK/ХEM/ONE/XYM network;
20th confirmation in the WAVES/TRX/BTT/ZEC/WIN/USDT(TRC20) network;
30th confirmation in the USDT(ERC20)/EXM/DXT/MNX/OMG/INK/ZRX/GNT/GUSD/HP/DAI/MKR/MNC/USDC/ROOBEE/ALGO/ATOM/CHZ/SGR/IQN/HB/LINK/YFI/PRQ/UNI/GNY/WXT(ERC20)/DOT/SHIB/GMT network;
50th confirmation in the BTG network;
60th confirmation in the ETZ network;
90th confirmation in the XTZ network;
2500 confirmation in the ETC network.
Unfortunately, it is not possible to affect the speed of confirmation the transaction by the network.
You can check the status of the transaction not confirmed within the expected time by the transaction ID on the corresponding cryptocurrency browser.