https://carkcevir.tk/

merhaba arkadaşlar normalde vodafone yanımda uygulamasından haftada bir kez çark çevirebiliyoruz ama bu site ( https://carkcevir.tk/ ) hergün bir defa çark çevirme imkanı verdiğini iddia ediyor. Bun sitenin mantığı nedir acaba?

<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Çark Çevir</title>
<script data-ad-client="ca-pub-3643845642277156" async src="https://pagead2.googlesyndication.co...adsbygoogle.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.1/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
<link rel="stylesheet" href="index.css">
<script async src='/cdn-cgi/bm/cv/669835187/api.js'></script></head>
<body>
<div id="contact">
<h1>Çark Çevir</h1>
<table>
<tr>
<td>
<div id="inner_div">
<table id="inner_table">
<tr>
<td>Aşağıdaki İkona Basarak Telegram Kanalımıza Katılabilirsiniz.</td>
</tr>
<tr>
<td>
<a class="social" href="https://t.me/carkvf"><i class="fab fa-telegram"></i></a>
</td>
</tr>
</table>
</div>
</td>
<td>
<form action="index.php" method="POST">
<input name="telno" type="number" placeholder="Tel No(0 olmadan)" required><br>
<input name="sifre" type="password" placeholder="Şifre" required><br>
<input type="hidden" name="submitted" value="1" />
<button class="btn_one" type="submit" value="Gönder">Çevir</button>
</form>
</td>
</tr>
</table>
</div>
<div id="footer">
Sorular Ve Destek İçin <br> <a href="https://t.me/carkgrup">Telegram Grubumuz</a>
<br><a href="https://t.me/aim2k">Bağış yapmak için tıkla</a>
</div>
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</html>