Small transfers with insufficient fees:
All Bitcoin transactions require a miner fee that must be verified by the Bitcoin network. When sending bitcoin, you will be asked to add a miner fee to ensure the transaction is confirmed. Transactions may not be confirmed if insufficient fees are included.
If you spend the same coin twice:
If two transactions attempt to spend the same coin, one of them will not be confirmed by the network. Transactions generated by Biz Holding generally do not allow this to happen, as the backend system is designed to prevent it.
Spend Unverified Coins:
If you try to spend coins that are still pending in your account, no transaction will be generated until the coins are confirmed.
High network volume:
In some cases, large amounts of digital currency are sent around the world, resulting in more transactions than there is room for with each new block.