Hi Maria Adora,
Clients do not need to ask freelancers to share their credit standing. To learn more about how Upwork works, I'd also strongly advise you to review the resources we shared here. If you see a job or invitation that looks suspicious, or inappropriate, you can flag it using the flagging option found on every job post or Upwork profile. This sends a notification directly to Upwork, allowing us to investigate and take the appropriate measures. You can read more on this help article and also, please check out Tips to avoid questionable jobs. Thank you.