title: 2Checkout : Bad request - parameter error
body: <p>I am sending below data.</p>
  
  <pre><code>array (size=7)
    'sellerId' =&gt; string '901252608' (length=9)
    'privateKey' =&gt; string '4A8093AA-6DC9-449B-BA7E-C9819ABB79D7' (length=36)
    'merchantOrderId' =&gt; string '12312' (length=5)
    'token' =&gt; string 'NTE0NTc5OTMtNWJmOC00YmE0LTkwN2YtNzg4MTNiN2QzNzI4' (length=48)
    'currency' =&gt; string 'USD' (length=3)
    'total' =&gt; string '10.00' (length=5)
    'billingAddr' =&gt; 
      array (size=6)
        'name' =&gt; string 'Joe Flagster' (length=12)
        'addrLine1' =&gt; string '123 Main Street' (length=15)
        'city' =&gt; string 'Townsville' (length=10)
        'state' =&gt; string 'Ohio' (length=4)
        'zipCode' =&gt; string '43206' (length=5)
        'country' =&gt; string 'USA' (length=3)
  </code></pre>
  
  <p>I am getting response
  Bad request - parameter error</p>
  
  <p>Why I am getting error response</p>