Stolen greencard and filing for I-751

[elephanzo 4]

Hello,

Note: We live in San Diego and it is IMPOSSIBLE to get an infopass appointment.  It's so frustrating but 365 days out of the year when I go online to make an appointment it says there's none available.

So a few months back my husband had his greencard stolen (along with the entire wallet) and since we could not get an infopass appointment we just went down the the office before it closed and luckily someone of importance took pitty on us and answered our questions.

We asked if we had to file the I-90 to get a new card or if we could just wait until we applied for his conditions to removed.  He said we didn't have to file for the new card and we chose not to because we didn't want to spend the $500 when we knew we would just be applying for the I-751 a few months down the road.  Well, now it's time to apply to remove those conditions but it says we need to send with our application a copy of the greencard front and back.  We never scanned the greencard's back side.  We only have a copy of the front.  Do you think our application for I-751 is going to get denied if we do not send a copy of the back of the card? And now I am reading all of this info saying if you lose the card you HAVE to file for I-90 for a new card but we never did.  Are we going to get in trouble for not filing for a new greencard when his last one was stolen?  That man told us we didn't have to but I don't even know his name and now I am thinking he had no idea what he was talking about.

If anyone knows or has been in this situation I would really grateful for any insight!  Thank you!