@Eberhard_Blocher: You say you inform guests of your full name in the welcome messages after booking but guests often fail to read those so they have trouble with the details upon arrival.
Are you only signing off with your full name and not otherwise bringing attention to the fact that they must know your entire name? Since it is crucial information, I would either mention it in the first or second sentence of my welcome email or have it as a separate paragraph so it stands out.
I have a trick that I use in my welcome email which l refer to as my “countdown” letter. It is the last correspondence that goes to the guest and is within a week or two of arrival. The email is a bit lengthy with various arrival instructions and information so I precede each paragraph with the subject matter and underline it so it stands out. That way, they act as mini-headlines and are easily located by the guests as to the topic. Here are some of the (optional) headings:
At the Airport.
Taxi, Shuttle, etc.
Location of building.
Arrival via Lobby.
Arrival via garage/car park.
When pointing out an important aspect, I start off with a hook phrase or word such as: “Please note that…” or “Important:” For example: “Important: You must say to the Parking attendant [yadda-yadda] or he will give you a regular parking ticket which requires payment.”
I have zero problems with guests not reading/following my instructions…Zero! Almost without exception, they all exclaim how helpful and wonderful my arrival instructions were. It is something I have honed over the past 7 yrs.
In your case, I would state very early in your letter something to the effect of:
“Important: When you arrive at [the property], there is a Directory with a list of names. Select the name BLOCHER (my name) and ring for entry.”