Everything runs in dinars, from deposit to payout, so there is no conversion between your bank and your balance. The ways to pay come down to three groups: bank transfers and cards, vouchers and cash over a counter, and the shops themselves.
They differ not in what arrives, but in what they ask of you. The bank route needs your bank to pass that kind of transaction, a voucher asks for no card at all, and the counter asks only for the trip to a payment point.
Withdrawals are the half where the differences show, and one step decides everything else: verification. The law requires a licensed operator to verify a player before it pays out, so it costs a few minutes on day one and a weekend if it waits until a payout is due.