求证我哪里得罪了客户（付邮件内容）

背景： 客户来自意大利，从去年始，当初pi 都了，结果种种他那边的原因他没付款，今年又跟了下，求指出哪里没考虑周全，竟让客户如此这般： 2013年8月27日：跟踪 hi xx, hope you he a nice holiday . it is a pity you cancel the aa business for bank reason last year . does the trouble finish ???are you still in aa ? waiting for your comment . 2013年8月30，客户回复： good morning thank you for your message form of problem bank l / c, regret not hing done business. i am always interested in buying aa, but now the payment systems, he changed the trade b广告een europe-russia. canada-us america - brazil, to make a payment: letter of guarantee, issued to ensure the goods of purchase. just l / c or advance of money ... this is the payment instrument that we use today more information if you ask people you know best regards (不晓得大家能不能看懂这封邮件， 反正我是纠结了很久，他说的这个付款方式是什么 ！！！) 之后询问未果 。 11月29再次跟进： hi sir , christmas will come , do you he aa purchase before it ? thanks 11月29 客户回复： good morning yes, we bought aa supplier from brazil, with form of payment "financial surety" thanks （对于这个付款方式，还是搞不明白，但是想到之前问过，人家根本没理会，自己想也别去戳这个窟窿。同时令我想起了阿里巴巴的一个功能） 11月29我的回复： good morning , now alibaba also he the same "financial surety" ,is it acceptable for you ? i believe you can se the money buy from china . thanks -------------------------------------------------------------------------------- 11月29 他的回复： i did not understand i do business with that company; accept my form of payment. i pay no, with letter of credit, but with fjdeiussione guarantee payment. this new form of payment both in brazil and in the u.s. and europe is accepted. the supplier has guaranteed payment of goods sold （大家看懂它的付款方式了吗，其实只要碰到看不懂的邮件，我都会找老外朋友帮忙，这封包括之前的一封，我都问过老外， 这次老外告诉我 就是信用证。 我就有一个疑问，如果真是信用证的话客户何必说是最近欧洲 美国??巴西新兴起的呢??这个也不难啊，于是我想跟客户确认） 11月30 我回复： dear andre , our company??do letter of credit since 2010 . is the business like this : after you confirming the purchase order ------- i give you perform invoice ----- you take invoice to your bank for opening letter of credit (maybe you need pay surety money to your bank ) ---- your bank send letter of credit to china bank ------ when we received the original letter of credit , we begin produce --- products finished and shipment , we submit all the document (packing list , commercial invoice....)to china bank ----------- china bank send documents to your bank --------- finally your bank pay the money to us . it is easy for us to operate letter of credit , but we only accept the letter of credit from good reputation bank . please send your bank information to us for evaluate . i believe we can he a good cooperation in the future . waiting for your news . （这封邮件的本意 我是确认他说的付款方式的流程，避免以后出错，文理之间我自己感觉没什么不妥之处，哪曾想客户竟然这么回复） 2013年11月30日 in italy, we hold freedom. speaks, thought, free market enterprise, i do not mean to be offended by someone like you. i never buy aa from your company, and please do not write anymore. （请各位告诉我， 我哪里出了问题 ） 话说看到这封邮件先是惊讶，后是生气，本打算写封邮件骂着厮一顿，最后时刻内容除啦。回复如下： good moring ? am i wrong ? i confirm the business process with you for oiding mistakes in business ,am i wrong ? i hope you can explain that , why ? i he many customer from europe , and they give me good appraise . where i offended you ???you must give me answer 细心的同学发现我用的must ，因为他用的never ，都是大写。 我是百思不得其解，求教，这是这么了，哪里来的味 ？、？、 ============================= 大结局： 在看到各位的评论之后，我觉得我也有不妥之处，于是写信道歉啦 hello andre , i am sorry give you uncomfortable feeling . i just want to confirm with you the payment form ""financial surety"" . sorry . tom 哪知道这厮的回复令我更是无语， 所以果断放弃之，不是我的菜，无视他啦 mr. tom sa