How does the math work in the Amazon world?
Let's take a year and assume that you have never bought a voucher before. Also let's assume 30 days for all months
Rules to be satisfied at all times:
R1 - 30K max in 30 days
R2 - 40K max in 60 days
R3 - 50K max in 90 days
1st Jan: Buy 30K
1st Feb: Buy 10K (else R2 would break)
1st Mar: Buy 10K (else R3 would break)
1st Apr: Buy 30K (else R3 would break)
1st May: Buy 10K (else R2 would break)
1st June: Buy 10K (else R3 would break)
1st July: Buy 30K (else R3 would break)
1st Aug: Buy 10K (else R2 would break)
1st Sept: Buy 10K (else R3 would break)
1st Oct: Buy 30K (else R3 would break)
1st Nov: Buy 10K (else R2 would break)
1st Dec: Buy 10K (else R3 would break)
31st Dec: Buy 20K (else R2 would break)
So total you can buy is 4*(30+10+10)+20K=220K
So how did Amazon arrive at 360K in a 365 day interval
What am I missing here?