Claude Refund 3000€++

Got 3-4 refunds from Anthropic and now my billing shows €3000+ in credits — display bug?

Just switched from Pro to Max5 around the same time the refunds were processed, and now my billing dashboard is showing what appears to be over €3,000 in credits. That seems... way off.

Is this a known display glitch? Could the plan switch have triggered something weird on the backend?

Anyone else seen this? Thanks