How long does it take to get a dependent DTV visa for a child in the UK Embassy for Thailand?

Following my DTV approval last week from the Uk embassy London (took 3.5 days); I applied to a dependant DTV for my child, which arrived this morning. The dependant DTV took 36 hours to receive from the point of payment. Both cost £300 EACH and needed seperate applications. I submitted the same proof of funds for both my application and for the dependant visa. Process for both was very straight forward, the dependant visa needed a Birth Certificate but apart from this, both were almost identical. Hope this helps. Good Luck.