diànzǐ fāpiào fābùdào, chángjiàn yuányīn shì yóuxiāng xiěcuò, jìn le lājīxiāng huò hái zài kāipiào zhōng

电子发票发不到，常见原因是邮箱写错、进了垃圾箱或还在开票中。

The common reasons for not receiving an electronic invoice are an incorrect email address, it going to the spam folder, or it still being processed