works but cannot change address

rowers/templates/buy_trainingplan.html

@@ -0,0 +1,43 @@
+{% extends "newbase.html" %}
+{% block title %}Rowsandall Purchase Training Plan{% endblock title %}
+{% load rowerfilters %}
+{% block main %}
+
+<h1>Purchase Training Plan</h1>
+
+<form action="" method="post">
+  <ul class="main-content">
+    <li class="grid_3">
+      <h2>Billing Details</h2>
+      <p>For tax reasons, we need your country of residence. You should
+      update this when it is incorrect.</p>
+      <table>
+        {{ form.as_table }}
+        {{ billingaddressform.as_table }}
+      </table>
+    </li>
+    <li class="grid_3">
+      <h2>Your Purchase</h2>
+
+      <p>Plan: {{ plan.name }}</p>
+      <p>Price: {{ plan.price }}&euro;</p>
+    </li>
+    <li>
+      <p>
+        Your purchase will be effective immediately. You will be charged
+        for the price of the plan.
+      </p>
+    </li>
+    <li class="grid_3">
+        {% csrf_token %}
+        <input type="submit" value="Proceed">
+        You will be able to review your order before finalizing your purchase.
+    </li>
+  </ul>
+</form>
+
+{% endblock %}
+
+{% block sidebar %}
+{% include 'menu_payments.html' %}
+{% endblock %}