even 邮局的那些好事营业员自动升级成priority mail

Postoffice shoud charge or return the mail to me, not her. For example, if postoffice upgraded it to Express international mail, would she pay for it and ask me to pay back.

It still does not make any sense.

you like 遇事不争的境界, it's your business,

I do not think I 老是气的头昏脑涨,

different issue.