Yellow Sun there is a catch with that plan. Subsequent requests in a 60 day period become additve. Once the £600 limiit is reach bingo.
If your writer went in with his first request - Day 1 - and got his reply on day 15 (average) and filed request 2 on Day 20 he might get his satisfactory answer by day 40. If not and he filed a third then he may well hit the £600.
The 60 day clock is probably reset at each query ie Day 60, Day 80 etc.
Humphrey wins.