Indonesian Immigration regulations have been changing their methods and types of visas over the last 12 months. They are switching across to more digital systems, however, they are also changing the details of these visas.
In particular the variations in the VOA visas involve high speed short term e-VOA and longer-term extendible VOA.
The e-VOA does not require so many details to be registered with the department of Immigration as the visa is valid for only 30 days.
The extendable visa on arrival requires more evidence of onward travel, where you will be staying and this allows the department to keep better track visitors that are in the country, when they leave and that there is a place where they can initially be contacted or if they move the extension registers where they will be staying.
This may seem onerous and invasive, however, with the influx of very large numbers of tourists the department wants to be able to monitor people that overstay their visas ( this happens more often than you may think) and to ensure that visitors have an initial place to stay and how many people are in a family group.
Indonesian Visa Service can take the much of the pain out of receiving the right documents for your stay, quickly and on time for your visit.