We understand a negative balance can be confusing. Since the Xometry Advance Card does not work like a regular credit card, the accounting is a little different.
We deduct card purchases from your job payout about seven days after the transaction settles (which is typically 1-2 days after you make the purchase). Depending on when your next job payout is, it's possible you get paid out before your advances are deducted, which can result in a negative balance. This can also happen if you take a few smaller Xometry jobs, and then use your advances to make one larger purchase.
No immediate action is required on a negative balance. The best way to turn the balance positive is to take a new job off the job board! You can refer to the Xometry Advance Card Terms and Conditions for more information.