Can I lose all my money if a cryptocurrency fluctuates?
Fluctuations in currency values happen on a day to day basis and cryptocurrency is no different. In general crypto fluctuates minimally - so simply keep an eye on the rates, and exchange to or from USD promptly.
When depositing - any cryptocurrency that you send to Cafe immediately becomes U.S. currency.
Withdrawing - when ready to withdraw, always transfer your funds immediately to an Exchange, or a Bitpay Visa card.