If I give my client a full refund, will that prevent them from leaving negative feedback?

No. A full refund removes any written public feedback from your profile, but the client’s additional feedback (such as how they rated you on a scale from 1 to 5 in certain areas) will still be considered in your Job Success Score (JSS) calculation. That means refunding to “avoid” a bad review may not have the result you’re expecting. Instead, when possible, it’s smart to focus on open communication and doing your best to resolve concerns.