function cUs_CtCt_loginAlreadyUser_callback()
{
    $cUs_CtCt_api = new cUsComAPI_CtCt();
    $cUs_email = filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING);
    $cUs_pass = filter_input(INPUT_POST, 'password', FILTER_SANITIZE_STRING);
    //API CALL TO getAPICredentials
    $cUs_CtCt_API_credentials = $cUs_CtCt_api->getAPICredentials($cUs_email, $cUs_pass);
    //api hook;
    //print_r($cUs_CtCt_API_credentials);
    if ($cUs_CtCt_API_credentials) {
        $cUs_json = json_decode($cUs_CtCt_API_credentials);
        //SWITCH API STATUS RESPONSE
        switch ($cUs_json->status) {
            case 'success':
                $cUs_API_Account = $cUs_json->api_account;
                $cUs_API_Key = $cUs_json->api_key;
                if (strlen(trim($cUs_API_Account)) && strlen(trim($cUs_API_Key))) {
                    $aryUserCredentials = array('API_Account' => $cUs_API_Account, 'API_Key' => $cUs_API_Key);
                    $cUs_CtCt_API_getKeysResult = $cUs_CtCt_api->getFormKeysData($cUs_API_Account, $cUs_API_Key);
                    //api hook;
                    //print_r($cUs_CtCt_API_getKeysResult);
                    //$old_options = get_option('contactus_settings'); //GET THE OLD OPTIONS
                    $cUs_jsonKeys = json_decode($cUs_CtCt_API_getKeysResult);
                    if ($cUs_jsonKeys->status == 'success') {
                        $postData = array('email' => $cUs_email);
                        update_option('cUs_CtCt_settings_userData', $postData);
                        $cUs_CtCt_deeplinkview = $cUs_CtCt_api->get_deeplink($cUs_jsonKeys->data);
                        // get a default deeplink
                        update_option('cUs_CtCt_settings_default_deep_link_view', $cUs_CtCt_deeplinkview);
                        // DEFAULT FORM KEYS
                        //print_r($cUs_jsonKeys->data);
                        foreach ($cUs_jsonKeys->data as $oForms => $oForm) {
                            if ($oForm->default == 1 && cUs_CtCt_allowedFormType($oForm->form_type)) {
                                //GET DEFAULT FORM KEY
                                $defaultFormKey = $oForm->form_key;
                                $form_type = $oForm->form_type;
                                $deeplinkview = $oForm->deep_link_view;
                                $defaultFormId = $oForm->form_id;
                                break;
                            }
                        }
                        if (!strlen($defaultFormKey)) {
                            //echo 2; //NO ONE NEWSLETTER FORM
                            $aryResponse = array('status' => 2, 'cUs_API_Account' => $cUs_API_Account, 'cUs_API_Key' => $cUs_API_Key, 'deep_link_view' => $cUs_CtCt_deeplinkview);
                        } else {
                            $aryFormOptions = array('tab_user' => 1, 'cus_version' => 'tab');
                            //DEFAULT SETTINGS / FIRST TIME
                            update_option('cUs_CtCt_FORM_settings', $aryFormOptions);
                            //UPDATE FORM SETTINGS
                            update_option('cUs_CtCt_settings_form_key', $defaultFormKey);
                            //DEFAULT FORM KEYS
                            update_option('cUs_CtCt_settings_form_keys', $cUs_jsonKeys);
                            // ALL FORM KEYS
                            update_option('cUs_CtCt_settings_form_id', $defaultFormId);
                            // DEFAULT FORM KEYS
                            update_option('cUs_CtCt_settings_default_deep_link_view', $deeplinkview);
                            // DEFAULT FORM KEYS
                            update_option('cUs_CtCt_settings_userCredentials', $aryUserCredentials);
                            delete_option('cUs_CtCt_settings_userData');
                            $formSettings['form_status'] = 1;
                            $formSettings['form_key'] = $defaultFormKey;
                            $formSettings['form_id'] = $defaultFormId;
                            $formSettings['form_type'] = $form_type;
                            $formSettings['updated'] = 1;
                            update_option('cUs_CtCt_settings_form_' . $defaultFormId, $formSettings);
                            $aryResponse = array('status' => 1);
                        }
                        //echo 1;
                    } else {
                        //{"status":"error","error":"No valid form keys"}
                        $aryResponse = array('status' => 3, 'message' => $cUs_jsonKeys->error);
                    }
                } else {
                    $aryResponse = array('status' => 3, 'message' => $cUs_json->error);
                }
                break;
            case 'error':
                $aryResponse = array('status' => 3, 'message' => $cUs_json->error);
                break;
        }
    }
    echo json_encode($aryResponse);
    die;
}