Nice try alia.
At first I did not think you were 19, but I am leaning that way now.
In the US the highway speed limits are 45mph to 70mph. 45-70 means just that, you can't go 100mph, you violate the rule.
Technically, if you post more than 100 times in a month you have breached the terms. Your contract specifically states it, it does not state at least 30, it states 30-100, a clear, specific range outside of which you violate terms.
Pay him back.