Hi HUMBERTO!
Thanks for reaching Microsoft Community. We're here to help and let's work on this together.
I understand you lost the SIM card tray, and you need a replacement. Happy to help and provide more options.
Regarding your query on replacement, We're sorry to say that when it comes to replacement here in community forums, we don't have the right tools and resources to help you. But our live Microsoft support team will be more than happy to help you with 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.
Hope this helps!
Regards,
RodelioP.