What about terms of payment?

付款方式怎么定?

What are your terms of payment?

你们的付款条件是什么？

What are your terms of payment?

你们的付款方式是什么？

Second, about the terms of payment.

第二点是付款的有关条款。

B： And what about the terms of payment？

关于付款方式呢？