SKYCYBER.NET provides a prorated billing service. This means that all customers invoices are due on the 1st of each month. Because of this, you will either pay more or less depending what day of the month it is.
1st - 19th = less payment, next invoice due on the upcoming 1st of the month. For example, you order a service on March 19th and pay less for your first invoice. However, your next invoice is due on April 1st.
20th - 31st = more payment, next invoice due on the 1st of the second month. For example, you order a service on March 20th and pay more for your first invoice. However your next invoice is due May 1st.