本文介绍了一种安全的信用选项，允许用户使用积累的信用下载eBook、视频等资源，而无需额外支付费用。通过完成每月阅读或观看50节内容，用户可以获得信用，并在订阅计划中查看进度和可用信用。
Regarding use credit option, this is for you when you want to download the title using credit. This is completely secure and you are not charged for anything in order to use credit. Just use that option to download eBook in ePUB, MOBI or PDF. You can download video in MP4 format.
You are using monthly plan and you will receive credit each month when you complete reading/watching 50 sections of contents. The progress and available credits can be checked at - https://subscription.packtpub.com/credits
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