To resolve the issue of Deco My Tree prompting you to download the Temu app to view your messages, follow these steps:

1. Understanding the Request: Deco My Tree is encouraging users to download the Temu app as part of a promotional tactic. This app is meant to unlock or enhance features, including viewing messages.

2. Assessing the Need for Temu: First, determine whether you are willing to download Temu for this purpose. Take note that Temu is primarily a shopping platform. Some users have raised concerns about privacy and potential scams linked to the app - learn more - learn more.

3. If You Decide to Download Temu:

- Go to the App Store on your Macintosh device.
- Search for "Temu" in the search bar.
- Click "Download" and follow the prompts to install the app.

4. Viewing Messages: After installing Temu, you should be able to open Deco My Tree and check if you can now access your messages.

5. Alternatives: If you prefer not to download Temu, you might explore contacting Deco My Tree's support for alternative ways to access your messages. You can visit their official site or check their FAQs for more information - learn more.

6. Removing Temu: If you later decide that you do not want the app, simply uninstall it:

- Click on the Temu app icon.
- Drag the app to the Trash.
- Empty the Trash to complete the uninstallation.

Be cautious about downloading apps that require sensitive information or deviate from their primary function. If you have concerns about security, consider researching more about the Temu app from trusted sources before proceeding.

If you need further assistance specific to Deco My Tree or have questions about their services, feel free to ask.