You can select one of the following plans: Silver (250 edits for $37/month), Gold (600 edits for $69/month), or Platinum (2,000 edits for $99/month).
All edits are valid for a month. After that they'll expire. They are not transferred to the next period.
You can view your current subscription plan in the API Keys section of the plugin. Here you can also find the link to Sellika subscription management page.
If you want to upgrade your plan, you can do it any time. You pay the difference between your current plan and the chosen one. Then you'll get the rest part of edits on your balance (total amount is brought up to the chosen plan). They will be valid till the end of the period.
If you want to downgrade your plan, your current plan will be valid till the end of the period.
If you want to cancel your subscription, you can do it any time. Your subscription will be valid till the end of the period.