Does allPay have minimum and maximum amount limitations on a single payment?

I did not find such information on the allpay.com.tw website.

See also

I have got an answer from allPay support (they always respond in Chinese even if a question was asked in English):

您好:

向您說明,目前註冊歐付寶會員每月的收/付款額度上限需視會員級別而定。
※提供您歐付寶會員級別總覽: 歐付寶 O'Pay 電子支付 - coming soon

另提供您各金流的付款上限:

  • WEB ATM: 單筆3萬元額度上限
  • ATM櫃員機: 使用"轉帳"功能,單筆上限為3萬元;使用"繳費"功能,可超過3萬上限。
  • 超商代碼付款: 單筆2萬元額度上限。
  • 歐付寶帳戶: 依付款方的會員級別而定。
  • 信用卡: 依付款方的會員級別以及信用卡本身可用的額度而定。

As I understand:

  • ATM, WebATM: upper limit for a single payment is 30.000 TWD.
  • Barcode, CVS: upper limit for a single payment is 20.000 TWD.
  • Bank Card: upper limit depends on a merchant’s membership level within allPay and on the bank card itself.

It is implemented in my extension: