If I buy one membership (membership 1) for 69.00 dollars per month and ended up using it for 1 month and buy another membership (membership 2) for 39.80 dollars for a month or if I buy a membership ( membership 3) for 99 dollars per month only using 2 months which membership is higher, the membership 1 and 2 together for 2 months or membership 3 for 2 months?