Info from database
Looking at the screen grabs in your word doc you appear to be wanting to display the map containing a single location for the relevant holiday home but there is no filter for that single location in the recordest selection shown.
You also need to bind each line of the address and the postcode to accurately show the site you want to map.
If you watch and read the Solution recipies found here pro-maps-for-google/ you will find this easy to do.
The bottom line is that you must set a filter in your recordset to dynamically for the individual property and then bind the results from that recordset, which must be a single record, to the point to be plotted as the default destination.