I cannot update my post anymore, but I already wrote it in another reply.
The edit suggestions goes directly to the business owner. They can accept / deny the update request. I've also asked friends and colleagues to ask for the same edit and to report the listing as non existent but nothing happened.
The answer from the Google support I'm referring to in my post, is from a legal request I've sent to them.
This is the full response in Italian (this is the reason why I didn't attach it to the post):
Gentile Sig.
La ringraziamo per il suo messaggio.
Le facciamo presente che Google è un fornitore di informazioni, non un mediatore. Forniamo informazioni su luoghi, attività commerciali e altre informazioni relative ad una particolare parola di ricerca di ricerca, ma non rivendichiamo alcun diritto sulle etichette associate a tali contenuti. Per ulteriori informazioni, la invitiamo a consultare i nostri Termini di servizio all'indirizzo https://www.google.com/policies/terms/. Per questioni riguardanti il marchio, la preghiamo di rivolgersi direttamente al proprietario della scheda o del luogo in questione. Se il proprietario dei contenuti in questione decide di modificare eventuali informazioni in seguito alla tua richiesta, tale modifica si rifletterà nella scheda la prossima volta che i robot di Google eseguono la scansione del relativo materiale di origine.
Se ritiene che informazioni personali come il suo numero di telefono vengano visualizzate nei risultati di ricerca relativi a un'attività o a una località, può segnalare il problema tramite Google Maps seguendo le istruzioni riportate in questa pagina: https://support.google.com/business/answer/6163683
Cordiali saluti,
Il team di Google
Please notice that Sig. doesn't include my name in the email I've received.
This is google translate:
We would like to point out that Google is an information provider, not a broker. We provide information about places, businesses, and other information related to a particular search word, but we do not claim any rights on the labels associated with that content. For further information, please consult our Terms of Service at https://www.google.com/policies/terms/. For trademark issues, please contact the owner of the listing or location directly. If the owner of the content in question decides to change any information following your request, this change will be reflected in the tab the next time Google's robots scan its source material.
If you believe that personal information such as your phone number appears in search results for an activity or location, you can report the problem via Google Maps by following the instructions on this page:
Since the business listing is fake and your website/blog is real can you contact Google and claim that you are the actual owner of the business and this person has fraudulently claimed it?
Since he owns the trademark and (according to his other answers) the business doesn't seem to be legitimate, or even located in the address, that's what I would do as well.
I don't think this is the "correct" path. Google should be more open to requests, and try to be more understanding on users' requests.
Anyway, as I wrote in another comment the person behind this is either a normal person using his home address or someone working for another company located at that address.
This means that Google has assigned the ownership to him already. I couldn't find any way for requesting the ownership to the entry, but only a "ask the owner access to this entry" page.
Also, a business might exists in that address, but it's certainly not called like my blog.
Do you operate the blog as an individual? Meaning you don’t have any sort of business entity involved? If so maybe you could report a case of identity theft to your local police department and then send Google the police report via certified mail to their legal department along with a letter asking them to correct the information.
I thought google didn't really have any customer support or any humans involved in most things. It was all automated systems built by software engineers for the most part.
Sorry, I really meant to write "ask the current owner to get access to this entry". Meaning that I would need to ask the current owner to allow me to access the entry.
The answer from the Google support I'm referring to in my post, is from a legal request I've sent to them.
This is the full response in Italian (this is the reason why I didn't attach it to the post):
Please notice that Sig. doesn't include my name in the email I've received.This is google translate: