Hi Panuwat,
If you've mistakenly signed up for a "Business" account instead of a "Personal" one, you can change your account type by clicking on the button beside the Paymentwall logo on the top left corner of the page when you log in to your Paymentwall Account.
By switching to a "Personal" account, you will be able to pay for products and services online with Paymentwall.
If you have any questions or inquiries, please feel free to contact us.
Best,
The Paymentwall Team