G'afternoon mikey........You have said..".One bottle normally lasts me about 4-5 days."
I thought you lived within the boundaries of the City & County of Swansea. It has always been my understanding that Swansea it is an area where folk enjoy alcoholic beverages and that 4 to 5 hrs is considered a very very long time to consume a bottle of even the highest AV contents. Consequently, 4 to 5 days is a very 'conservative' time.
Obviously you Do Not visit of an evening, Wind Street,Swansea.☺☺
Cheers....Hic, Hic,....Hans.