Confusion over AirBNB for Russian Tourist Visa

I applied for Russian Tourist Visa to visit St. Petersburg for 4 nights at a consulate in India after doing some research that Airbnb are acceptable for accommodation proof. I obtained the invitation from an agency in Saint Petersburg (Goingsus) and they added Airbnb details in my invitation.

The invitation has accommodation column which says "apartment for rent" along with host address and phone number. I submitted my Airbnb payment confirmation along which states the same address as well.

However, today, the woman at the visa center was skeptical saying this is not a hotel to which I said it's an apartment. My host gave me the address of the apartment but the woman there kept insisting the apartment needs to have a name and she is unsure if the consulate would approve it. She also said I as well as my host may be called for clarification. However, she took my passport and asked me to collect it next week.

Did I do anything wrong here? What should I clarify if they call me and ask me about my accommodation? And how likely is my visa to be approved or denied?