Where "casino withdrawal process" is concerned, one rule covers most of it: every detail must line up before coins are sent. A coin deposit travels on a public network, and the casino only sees it once that network has confirmed the transfer. The coin, the network it runs on, the address and sometimes a memo all have to match what the payment page shows. Most failed crypto payments come from a mismatch in one of those details, and very few can be undone after sending.
Withdrawals run the same route in reverse: the player supplies an address, and the casino sends coins on the network it supports. An address from a wallet or exchange that does not support that network can lose the payment, so the receiving side deserves the same care as the sending one. A small test transfer before a large one costs one extra fee and confirms the whole route, including any tag the receiving account needs.
Every transfer pays a fee to the network, set by demand at the moment of sending and paid by the sender. The casino may add its own charge on withdrawals, and it sets a minimum deposit for each coin. Coins sent below that minimum are often never credited, because processing them would cost more than they are worth. On a crowded network the fee alone can swallow a small deposit, so the timing of a transfer matters too.
Quick answers
Why keep the transaction hash of a deposit?
The hash lets anyone follow the transfer on a public block explorer and gives support the reference it needs to trace a missing payment.
What is a memo or destination tag for?
Some networks need it to tell the casino which account the coins belong to; without it, the transfer waits for support to match it manually.
What happens to coins sent below the minimum deposit?
Undersized deposits are often never credited, because processing them would cost the casino more than the coins are worth.
Should a deposit address be typed by hand?
No. Addresses are long and unforgiving, so pasting the full address fresh from the cashier for every deposit is far safer.
Why does the network matter for a coin deposit?
Many coins run on several networks, and a casino accepts each on only one or two; coins sent on another network may reach an address nobody watches.
Who pays the network fee on a coin transfer?
The sender pays it at the moment of sending, and its size depends on how much demand the network faces right then.