Hi @Ruhul_A, welcome to 3Community! 👋🏻
Since this is a public forum, I can’t see the exact reason why this has happened. The most likely explanation for why you can’t use internet or make calls is the roaming charge of 6000 SEK. Your subscription has a cost limit which, once reached, will block the subscription to prevent further charges – meaning you won’t be able to use internet or make calls.
Bangladesh is included in the 3Världen service, so your subscription should work there as long as you have 3Världen activated and don’t reach the cost limit. The limit may be reached if you use your phone on a boat, for example. This is because of satellite roaming, which costs 150 SEK/MB (data). I recommend contacting our customer service so they can explain exactly what happened and help you further.