I'm about to apply for the TR 30day extension. I read in this group that TM30 MIGHT be requested at the immigration office so I asked my hotel for it.
Hotel said when I arrived the online system was down for 2 months and they've been submitting TM30 by email. The receipt they gave me it's a screenshot of a excel sheet with all my info and and my TM number in it.
Will this be acceptable at the immigration office if they do ask for the TM30?
TLDR : Answer Summary
The screenshot of the Excel sheet with your TM30 information provided by the hotel should be acceptable at the immigration office for your TR 30-day extension application, as other hotels have successfully submitted similar documentation.