It would be due to system restrictions for when a DD is due out I presume, usually 4 days restrictions. I am still waiting on mine tho, posted on the 7th, rang on the 13th looking for an update, was told they never received my signed forms. They will repost them out to me. Rang again on the 17th looking for the forms- Was told they now had my signed forms but not received since the 12th and should take 7 working days from the 12th which is today and no sign. In the meantime I have received 4 lots of forms to sign, the same one's, yet they have my original ones. Seriously they are a pure joke.