WTF?? Whenever i try to withdrawal cash from my Xapo debit card, ATM says not enough funds even tho i'm 1000% sure i got money in my xapo account and 100s of confirmations already?? This card only work occasionally so dont rely on it for your urgent withdrawals guys. It making me sick whenever i go to withdraw money and im already thinking to dump it 
There are a few things that could be happening in your case:
1. Your card could have been blocked due to many failed attempts or incorrect PIN (which at times is not your fault, it's the ATM that fails to pass us the correct info). You can solve this by PMing me or by emailing support@mychoicecorporate.com who are the card issuer and can unblock your card if you email them from the email account associated with your card.
2. There is a 2X ATM withdrawal per day. Unfortunately this includes failed attempts so if you try twice without success you will have exceeded the ATM withdrawals times you have for that day. You'd need to wait 24hrs to retry. I know this sucks but they are rules imposed by Visa and our issuer.
3. Keep in mind that there are the ATM fees and (depending on your country) FX conversion fees. Make sure you have enough funds to cover those.
If you have any questions PM me and I will do my best to help you resolve it. Thanks everyone for your patience.