想请教免面试资格的条件
背景：F1 visa仍有效，但因为转换身份改用J1.
当时F1也使用投件申请，故严格来说并没有真正"interviewed" for visa
关于投件服务，官方网站这么写的：
Were previously issued a nonimmigrant visa in any classification, unless the
only prior issued visa was a B visa; and
Are applying within 48 months of their most recent nonimmigrant visa’s
expiration date.
https://travel.state.gov/content/travel/en/News/visas-news/important-update-on-waivers-of-the-interview-requirement-for-certaing-nonimmigrant-visa-applicants.html
我的理解是，重点在"issued"而不是"interviewed" for visa,
但是在新的签证预约申请，免面试的问券是问有没有"interviewed" for visa.
想请问这种状况能否再次使用投件服务？