What is the fee for AltCoinTrader?

Excuse me, could you please clarify the fee structure for using AltCoinTrader? I'm particularly interested in knowing if there are any transaction fees, deposit or withdrawal fees, and whether there are any additional charges that I should be aware of. Additionally, are the fees fixed or do they vary based on certain factors, such as the amount being traded or the type of cryptocurrency being exchanged? I'd appreciate it if you could provide a detailed breakdown of the fees associated with using AltCoinTrader.