I'll be travelling to a few countries in Southeast Asia soon. I currently have the Full Works plan, so I know some countries are included, but for places like e.g. Cambodia, I know I have to use the roaming passes.
Since I'll be there for a while and 500MB runs out very fast I guess a few times a day, this seems complicated to manage. I want to know if my account will automatically buy another pass to keep me connected once I use up the 500MB, or if I have to manually buy a new one every time. If I do have to buy them manually, can I buy multiple passes in a single day, or do I have to wait a full 24-hour period before the system lets me get another one or resets my data? I really want to avoid being cut off completely, so I'm also wondering if simply removing my spend cap will allow it to keep working automatically.
I also need to figure out how to keep track of how much of my 500MB I've used. When I've been in Rest of World (ROW) countries before, it just showed "unlimited" and never cut me off, so I couldn't see my actual usage.
Finally, to make things easier, can I just upgrade my contract to get a Rest of World pass included?
Finally, will the international calls add-on work if I am away and need to call or text a different country for example, calling a third country that isn't the UK or the country I am currently in?
