Congratulations. I took my paperwork into the CAA and paid the fee (£191 including courier postage) and it took about three weeks for it to come back. I see no point in phoning in regularly. I waited a couple of weeks before doing so and it was ready to be signed.
I understand your comment about lack of wind. Did a quick circuit on Monday and was far too fast on approach for the nil wind. One of my worst landings in months.
Happy flying.