Royal mail service is not great! We had so many bad experiences from them. We used next day delivery service last year and all of the sudden my husband's Agency called saying where is the passport? We we're puzzled as we included it when we post the Documents. We suspect that the postman in London have stolen the passport.. it's funny though because all the documents arrive except for the passport. And then, when we filed claim, they did not pay us, not even a single penny. What a joke!