Of these 4 options #3 seems the best..
Personally I think another option would be better:
Remove the 30 or 90 day buttons at the top.. 3 columns to pick Call / Txt / Data choices then have this at the bottom of the calculator:
I never found it hard to understand. It's pretty straight forward.
As did I. I found it perfectly clear the first time I read it. However, 1 month and 3 months are not accurate. That would imply that you pay on the same date every month, or every 3 months. It's just not accurate.
Perhaps indicate when payments are required... like
"Paid every 90 days"
@Noosiekins, but you could pay on July 1st, and then again for 30 days on July 31st.
Still doesn't work out. Good try 😉
In fact, you would have 13 payements in *some* years depending on your start date, as the year has 365 (or 366 in a leap year) days.