> For the complete documentation index, see [llms.txt](https://manual.kardi.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.kardi.ai/en/subscription-and-payments/subscription-extension.md).

# Subscription Extension

{% hint style="info" %}
We will **notify you in advance by email** about the end of your subscription.
{% endhint %}

#### Kardi Ai Subscription Renewal Process

1. **Email notification of subscription end**\
   We will send you an email notification about the upcoming end of your subscription.
2. **Satisfaction verification**\
   We will call you to assist with the subscription renewal and ensure Kardi Ai meets your expectations.
3. **Subscription payment**\
   Payment details will be included in the email notification. After payment, we will send you a confirmation of the renewal by email.

> #### Why renew Kardi Ai subscription?
>
> 1. Regular ECG monitoring **increases the chance of detecting arrhythmia**.
> 2. Your records are crucial for diagnosis and treatment planning.
> 3. We **continuously improve** the Kardi Ai service based on feedback from patients and doctors.
> 4. **Regular ECG recordings** over 3 years **increase the chance of detecting arrhythmia by 50 times**.
> 5. **As age increases**, **the probability of heart arrhythmia rises**.
> 6. More than **20% of patients after surgery** experience **recurring problems**.

{% hint style="warning" %}
The chest strap remains your property, but without an active subscription, **you cannot make new ECG recordings**, and your **Kardi Ai account will be temporarily closed**.
{% endhint %}

***

{% hint style="success" %}
**Need help?**\
Contact Kardi Ai customer support\
☎️ [**+420 779 998 100**](tel:+420779998100)\
✉️ [**support@kardi.ai**](mailto:support@kardi.ai)
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://manual.kardi.ai/en/subscription-and-payments/subscription-extension.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.