Why Worthing tells Merriman to order the carriage?

When Mr Worthing discovers that Algernon is in his house, he is angry because his friend isn't allow to be with his dear ward Cecily, also because he tells to her that he is Worthing's wicked brother Ernest. That is why, Worthing decide to expulse Algernon from his house, and he tells Merriman, the servant in his house to order the carriage. Like this, Algy would come back to town, to London. True?