[BUG] Please give billing some ❤️, it is very sad

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Daily, I exceed $25 of API credits, and go to https://console.anthropic.com/settings/billing to top up

(1) Invoice history is stupid slow, 30 seconds to load 25 records? Bruh...
(2) Buy credits is stupid slow, when I hit my $50/day virtual card limit for the anthropic account and have to up the spend limit, subsequent transaction takes >5 minutes

5 minutes sitting waiting to give you money? Bruh.... we know how to solve this problem in 2025

What Should Happen?

https://console.anthropic.com/settings/billing should, like, not suck, or something.

Error Messages/Logs

Steps to Reproduce

1. Go to https://console.anthropic.com/settings/billing
2. Observe a spinning loading state for invoice for, like, an inconsiderate amount of time (≈30sec)
3. Buy credits
4. (Normally slow) (≈30sec)
5. Buy credits with exception (card failed once, retry)
6. (OBSCENELY SLOW) (>5min)

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

N/A

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_