billing: docs updates for tax changes (#21928)

## Description
- Docker will begin charging taxes/VAT for all European countries
starting March 1st 2025
- Updated Billing FAQ and "Update billing information" guide 

## Related issues or tickets
-
[ENGDOCS-2399](https://docker.atlassian.net/browse/ENGDOCS-2399?atlOrigin=eyJpIjoiMGZhMDdmNDczZDFjNGMyMzg3NzY5NGMxZTU2NDZiYjgiLCJwIjoiaiJ9)

## Reviews
- [ ] Editorial review

[ENGDOCS-2399]:
https://docker.atlassian.net/browse/ENGDOCS-2399?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

---------

Co-authored-by: Allie Sadler <102604716+aevesdocker@users.noreply.github.com>

content/manuals/billing/details.md

@@ -24,7 +24,9 @@ To update your billing information:
 2. Under Settings and administration, select **Billing**.
 3. Select **Billing information** from the left-hand navigation.
 4. On your billing information card, select **Change**.
-5. Update your billing contact and billing address information, then select **Update**.
+5. Update your billing contact and billing address information.
+6. Optional. To add or update a VAT ID, select the **I'm purchasing as a business** checkbox and enter your Tax ID.
+7. Select **Update**.
 
 {{< /tab >}}
 {{< tab name="Legacy Docker plan" >}}
@@ -35,7 +37,8 @@ To update your billing information:
 2. Select your avatar in the top-right corner.
 3. From the drop-down menu, select **Billing**.
 4. Select **Billing Address** and enter your updated billing information.
-5. Select **Submit**.
+5. Optional. To add or update a VAT ID, enter your **Tax ID/VAT**.
+6. Select **Submit**.
 
 {{< /tab >}}
 {{< /tabs >}}
@@ -55,7 +58,9 @@ To update your billing information:
 2. Under Settings and administration, select **Billing**.
 3. Select **Billing information** from the left-hand navigation.
 4. On your billing information card, select **Change**.
-5. Update your billing contact and billing address information, then select **Update**.
+5. Update your billing contact and billing address information.
+6. Optional. To add or update a VAT ID, select the **I'm purchasing as a business** checkbox and enter your Tax ID.
+7. Select **Update**.
 
 {{< /tab >}}
 {{< tab name="Legacy Docker plan" >}}
@@ -67,7 +72,7 @@ To update your billing information:
 3. From the drop-down menu select **Billing**.
 4. Select the organization that you want to change the payment method for.
 5. Select **Billing Address**.
-6. Enter your updated billing information.
+6. Optional. To add or update a VAT ID, enter your **Tax ID/VAT**.
 7. Select **Submit**.
 
 {{< /tab >}}

content/manuals/billing/faqs.md

@@ -29,13 +29,13 @@ If your subscription payment fails, there is a grace period of 15 days, includin
 - 5 days after the previous attempt
 - 7 days after the previous attempt
 
-Docker also sends an email notification `Action Required - Credit Card Payment Failed` with an attached unpaid invoice after each failed payment attempt. 
+Docker also sends an email notification `Action Required - Credit Card Payment Failed` with an attached unpaid invoice after each failed payment attempt.
 
 Once the grace period is over and the invoice is still not paid, the subscription downgrades to a free plan and all paid features are disabled.
 
 ### Does Docker collect sales tax and/or VAT?
 
-Starting July 1, 2024, Docker will begin collecting sales tax on subscription fees in compliance with state regulations for customers in the United States. For global customers subject to VAT, the implementation will start rolling out on July 1, 2024. Note that while the rollout begins on this date, VAT charges may not apply to all applicable subscriptions immediately.
+Docker began collecting sales tax on subscription fees for United States customers on July 1, 2024. For European customers, Docker will begin collecting VAT on March 1, 2025.
 
 To ensure that tax assessments are correct, make sure that your billing information and VAT/Tax ID, if applicable, are updated. See [Update the billing information](/billing/details/).