GoCardless is a next generation payments UK based Direct Debit payment provider. They make it incredibly cheap and easy for anyone to take payments online using the Direct Debit infrastructure.
GOCardless Docs https://gocardless.com/docs Ruby Clent Lib https://github.com/gocardless/gocardless-ruby
Example goes here.
Be sure to bundle your dependencies and then create a dummy test app for the specs to run against.
$ bundle
$ bundle exec rake test_app
$ bundle exec rspec spec
Copyright (c) 2013 [name of extension creator], released under the New BSD License