Louer Meublé Touristique and URSSAF Declaration trimestrielle de CA

I am registered with 2 activities:
(1) since may 2018 : renting my secondary house to tourists on a seasonal basis (Louer Meublé Tourisme) , and
(2) since august 2018, as a Profession liberale (teaching english).

I have received my first declaration trimestrielle from URSSAF , and it refers to COMMERCIAL activities and also to ACCRE ( from which I benefit.)  I was about to make my declaration this morning (as the date of limit of reception is 31 january) , when I realised that the SIRET number on the declaration is not that of the Prof Libérale activities, but that of renting (Louer Meublé Tourisme).

I understood, when I registered to rent my house out to tourists, that this was NOT considered a commercial activity, and that the revenues are declared with your tax annually,with a 50% abatement against all receipts.
Also, that registering as a Prof Libérale is a commercial activity, and the revenue earning for this activity only was relevant to URSAAF.

So now, having seen the renting SIRET on the URSSAF declaration , I am really confused as to which revenue(s) I am supposed to declare.

Can you tell me please, has URSSAF made an error with the SIRET reference number? Should they only be using the SIRET for the PROF. Libérale?
OR : Must I declare the revenue from renting, and from the Prof Libérale, to URSSAF ?

Thank-you for your early reply.