关于付款条件，请帮忙中译英这句话，thanks!

Please note our papment term is by L/C(letter of credit) at sight. Kinldy please confirm the order as soon as possible for us to prepare material and start production.

pls pay attention that our paying terms is to open L/C at sight.psl confirm the order asap that we can arrange the production.

Please note our payment terms period immediately open the letter of credit. Please confirm your orders as soon as possible so that we can arrange production.

这么重要的内容还不给分啊？也太小气了吧

please notice that our requirement for payment is open the reputationcard at once,please ensure the order form quickly for us to arrange the material for producing