I noticed there were some changes to the way we used openstack quotas today. So I had to do it the manual way! Please note that this can only be done thru the Admin API function, so if you are a Rackspace customer you would need to reach out to us to do this, unless you ran your own openstack or devstack implementation in-house.

Here is how I achieved it:

supernova {environment} {action} --option {number} {customer_ID}

supernova lon quota-update --instances 250 10010101

There is a lot of different commands available, use nova help to get more detail

 supernova lon help quota-update
[SUPERNOVA] Running nova against lon...
usage: nova quota-update [--user ] [--instances ]
                         [--cores ] [--ram ]
                         [--floating-ips ]
                         [--fixed-ips ]
                         [--metadata-items ]
                         [--injected-files ]
                         [--injected-file-content-bytes ]
                         [--injected-file-path-bytes ]
                         [--key-pairs ]
                         [--security-groups ]
                         [--security-group-rules ]
                         [--server-groups ]
                         [--server-group-members ]
                         [--force]
                         

Update the quotas for a tenant/user.

Positional arguments:
                     ID of tenant to set the quotas for.

Optional arguments:
  --user               ID of user to set the quotas for.
  --instances        New value for the "instances" quota.
  --cores                New value for the "cores" quota.
  --ram                    New value for the "ram" quota.
  --floating-ips 
                                New value for the "floating-ips" quota.
  --fixed-ips        New value for the "fixed-ips" quota.
  --metadata-items 
                                New value for the "metadata-items" quota.
  --injected-files 
                                New value for the "injected-files" quota.
  --injected-file-content-bytes 
                                New value for the "injected-file-content-
                                bytes" quota.
  --injected-file-path-bytes 
                                New value for the "injected-file-path-bytes"
                                quota.
  --key-pairs        New value for the "key-pairs" quota.
  --security-groups 
                                New value for the "security-groups" quota.
  --security-group-rules 
                                New value for the "security-group-rules"
                                quota.
  --server-groups 
                                New value for the "server-groups" quota.
  --server-group-members 
                                New value for the "server-group-members"
                                quota.
  --force                       Whether force update the quota even if the
                                already used and reserved exceeds the new
                                quota.