ALLO has two bill cycles, your cycle is determined by your installation date.
If your statement shows your bill is due on the 1st then your bill includes charges from the 10th of the previous month through the 9th of the following month. You should receive your bill around the 17th of each month.
If your statement shows your bill is due on the 15th then your bill includes charges from the 24th of the previous month through the 23rd of the following month. You should receive your bill around the 1st of each month.