owing: you offer a form of membership that costs 80 € per month in the first year, 100 € in the second year and 120 € per month in the third year. The assignment of... the first year of contributions, i.e., for months 0-12.
Enter 1-1 on the Entry date for the second year, i.e., the months 13-24.
Enter 2-2 on the Entry date for the thirsyear, i.e., the months 25-36.
If the status is then auto