I sent off my passports to Puja Travel, mainly because, I didn't want the worry of will the embassy issue a postal application, or won't they.
I received a phone call from Puja Travel this morning, to tell me that my passports had arrived, and to ask me if I required there help in obtaining air flights or accommodation, I told them that this had been booked months ago, but she still asked me the dates of my travel, so she could compare the cost, there costs were 325.00 pounds more per person than I had already booked. And even going on the relevant fight sites now, I still could knock 300 or so off there costs.
It may be that every one who is going to use the agencies will get one of these phone calls.
They won't miss this trick.