Claude Design Billing Bug: Extra Usage Purchase Doesn't Apply, Support Bot Traps Paying Users

A developer trying to finish a project in Claude Design hit two bugs in Anthropic's system: a billing UI that sells credits that don't work for the product, and a support bot that traps paying customers in an infinite loop with no human escalation path.

Bug #1: Extra Usage Purchase Doesn't Work for Claude Design

While using Claude Design, the app hit its usage limit and presented an upgrade screen. The user selected the $20 extra usage option (not the full $100 upgrade) because they needed only two more generations. Payment went through in three seconds, balance confirmed. But when they typed "Proceed," the app responded: "You've hit your Claude Design usage limit - try again in about 24 hours. Claude Design uses its own usage limit for now - this is separate from your regular Claude usage." Trying to save the design as PDF or send to Canva gave the same error.

The extra usage purchase flow is accessible from inside Claude Design and presents itself as the solution to a Claude Design limit. However, the purchased credits don't apply to Claude Design's separate usage system. The error message itself confirms they're separate systems, yet the purchase UI never discloses this before taking payment. This is a broken purchase flow, not user error.

Bug #2: Support Bot Fin Loops and Blocks Human Contact

When the user contacted support, they encountered Fin, Anthropic's support bot. The user explained: "Extra usage not working. Balance shows but I can't access it in Claude Design. Need a representative." Fin responded with three irrelevant suggestions. After the user said "That didn't help. You're stuck in a loop. I need a human representative," Fin asked them to describe the issue again instead of escalating.

The user typed "Representative" repeatedly. Fin replied: "I understand you want to speak with someone who can fully review your situation. Since you can't access your account normally, you can reach out using a different email address..." — but provided no email address. Fin then independently decided the user was disputing API credits (they never used the API) and quoted a policy about non-refundable usage. The bot cannot distinguish between a service that doesn't work and a dispute over used credits.

There is no flag or escalation path when Fin misreads the issue. No human ever entered the loop. After repeated attempts, Fin said "we noticed you might have stepped away" and closed the ticket. Because that ticket was still technically open, the system blocked the user from opening a new one. They had to log out of their paid account and contact support as a guest to bypass their own support wall. Anthropic's Help Center (updated March 2026) states: "Human spe..." (truncated in source).

The user is not asking for account fixes — they are documenting that two system bugs exist: one in the billing UI causing users to purchase unusable credits, and one in support infrastructure that prevents paying customers from reaching a human.