1) Visit their site and sign up for a free account with BITFINEX
2) Once you're verified use your VISA/Mastercard to deposit funds to your Bitfinex account
3) Buy XRP on Bitfinex with your funds, you'll then need to send your XRP to a Xumm wallet you'll create in the next step
4) Now follow this How to Guide on our forum
Enjoy your XRdoge!
If you already own XRdoge and would like to trade it please sign up free with Bitrue where you can trade XRdoge/USDT