Hey Fiona, Celine from the Figma Community team here! Thanks for reaching out, and sorry for the confusion.I took a look at your support case, and I can confirm that our support team reviewed your account.
The initial charge is expected: since you upgraded from a Collab seat to a Full seat on the same day, you were charged the prorated difference between the two seat types for the remainder of your billing period, rather than paying for two separate subscriptions.
The extra charge you noticed was caused by an additional Collab seat that was accidentally added during the upgrade process. Our support team has now removed that duplicate seat and voided the associated charge from your upcoming invoice.
For the full breakdown of the charges and billing timeline, please refer to your support case, as those details are specific to your account.
If anything is still unclear after reviewing the update, feel free to reply directly to your support case and the team will be happy to help further. Since this is now being handled through your existing support case, I'll go ahead and close this thread here, thanks for your understanding!