How to unlock my Seller Tier?

There are 4 Seller
Tiers: Tier 1, Tier 2, Tier 3, and Tier 4.

Your Seller tier will be calculated on all fully complete orders which you've accumulated. There is no time limit for upgrading your tier, it will be automatically updated once the upgrade criteria have been reached.

Seller Tier Criteria

     Tier 1: Starting tier
     Tier 2: Sold 5 items
     Tier 3: Sold 30 items or a total of 300,000 THB
     Tier 4: Sold 100 items or a total of 1 million THB