<form action="https://pay.paymenterio.pl" method="post">
  <label for="system">System:</label>
  <input type="text" id="system" name="system"><br><br>
  <label for="shop">Shop:</label>
  <input type="text" id="shop" name="shop"><br><br>
<label for="order">Order ID:</label>
  <input type="text" id="order" name="order"><br><br>
<label for="amount">Cena:</label>
  <input type="text" id="amount" name="amount"><br><br>
<label for="currency">Waluta:</label>
  <input type="text" id="currency" name="currency"><br><br>
<label for="name">Nazwa Produktu:</label>
  <input type="text" id="name" name="name"><br><br>
<label for="success_url">success_url:</label>
  <input type="text" id="success_url" name="success_url"><br><br>
<label for="fail_url">fail_url:</label>
  <input type="text" id="fail_url" name="fail_url"><br><br>
<label for="notify_url">notify_url:</label>
  <input type="text" id="notify_url" name="notify_url"><br><br>
<label for="method">method (tylko gdy system 2):</label>
  <input type="text" id="method" name="method"><br><br>
  <input type="submit" value="Submit">
</form>