Currently there is no commercial plan for LINE@ API in Thailand. There are 2 options now.
ScaleUp program : All detail and sumbitted form in https://scaleup.line.me
Official Account + Business Connect : Please kindly provide this informaiton below ane send to e-mail : firstname.lastname@example.org
1.) Full name 2.) Contact number & email 3.) Company name 4.) Company address 5.) Business model
There are No free plan in Thailand, Military state.
While creating a channel, if you selected "Developer Trial" plan, it is not possible to upgrade that plan. We suggest you create a new channel, with "Free" plan and then upgrade it to premium.
Plan **Developer Trial** A trial plan which lets you create a bot that can send push messages and have up to 50 friends. Note: You cannot upgrade or buy a premium ID for a Developer Trial plan. **Free** A plan which lets you create a bot with an unlimited number of friends. Push messages cannot be sent with this plan. Note: You can upgrade this plan at any time.