Hi Nereida!
Thanks for reaching Microsoft Community. We're here to help and let's work on this together.
I'm sorry to hear that you're having trouble finding a replacement Sim card tray holder for your Surface Pro 7. Unfortunately, Microsoft does not sell replacement Sim card trays for Surface devices separately. However, you may try to contact live Microsoft support team for further assistance. They will be able to offer you more options on this. Below are the steps on how to contact them:
- Go to Contact Us- Contact Us - Microsoft Support.
- Choose how you would like to get support for your Surface device.
- Type in the problem you need help with.
- Look at any available solutions offered and select Contact Support.
If the above steps did not work, you can also check on Barb's step by step instructions on how to contact support How to get Phone and Chat Support (for Surface Home/Consumer - Microsoft Community.
Thanks again for choosing Microsoft. Hope this helps!
Regards,
RodelioP.