Paul
You should have paid 3 months in first week of July for July, August and September in advance following the AGM
You should also have received the AGM minutes which specify all the Community Charges
If you have not paid and or have not received the AGM minutes then you should e-mail the Administrator on admin@cdagr.eu and clarify your position.
It is possible that your details were not provided by the old Administrator or that when they tried to take it there were insuffiecient funds in your bank (Electricity Company may have beat them to it?)
Either way you need to Contact them
Details of Minites and rates on official site cdagr dot eu
Mick