If you want to buy or sell crypto currency to bitrush.nl you will need a crypto-wallet. This is an account on which you can save your crypto-currency. Bitrush.nl does not have its own wallet. Bitrush.nl clients usually use the following wallets:
One of the main features you need to buy or sell crypto currencies is your coin address. Keep in mind that you need a different coin address based on the currency. A Bitcoin adress and an Ethereum adress for example. It is possible to manage different addresses on one wallet. When you’re being asked to generate an address at a wallet you should save it first (it could be a constantly generating adress feature).