fix(acc): add file upload info

Author: ldecarvalho-doc

pages/account/how-to/open-a-support-ticket.mdx

@@ -29,7 +29,7 @@ Scaleway provides 24/7 basic technical support by ticket for free. You can conta
 
 - **Related resource**: specify the exact resource affected by the issue, such as a specific Instance or volume.
 
-- **Severity**: select the severity level based on the impact of the issue (see table below). 
+- **Severity**: select the severity level based on the impact of the issue (see table below).
 
 
 | **Severity** | **Description**                                                           | **Examples**                                           |
@@ -55,7 +55,7 @@ Example: “The issue occurs when attempting to start an Instance after applying
 Example: “The Instance should start within 2 minutes without errors.”
 
 - **Actual behavior:** describe what is happening instead.
-Example: “The Instance remains in "Starting" status for over 10 minutes and then switches to "Error". 
+Example: “The Instance remains in "Starting" status for over 10 minutes and then switches to "Error".
 
 ### Include relevant technical details
 
@@ -65,11 +65,19 @@ Example: “The Instance remains in "Starting" status for over 10 minutes and th
 
 ### Add supporting files
 
-Attach screenshots (png, jpg), or files (pdf). 
-Examples: 
+You can drop or browse to attach files that might be relevant to understanding your issue. You can include screenshots, PDF and text files.
+  <Message type="important">
+    Keep in mind that:
+      - You can attach up to 4 files per message and 10 files per ticket.
+      - The size of each file cannot exceed 10MB
+      - The following file formats are supported: `jpeg`, `jpg`, `png`, `pdf`, and `txt`.
+      - The uploaded data is exclusively intended to provide you with support in the use of Scaleway services. Do not transmit any inappropriate, or irrelevant sensitive data.
+  </Message>
+
+**Examples:**
 - Screenshot of the Scaleway console
 - Screenshot of the network tab of your browser’s Developer Tools (right-click anywhere on the page and select **Inspect**. Go to the **Network tab** in the Developer Tools panel.)
-- Logs 
+- Logs
 
 <Message type="important">
   If you have lost access to the Scaleway console and want to create a ticket, you must first [follow this procedure](/account/how-to/use-2fa/#how-to-regain-access-to-your-account) to regain access to your account.