Membership

My membership comes to an end at the end of March but I have to give 1 month's notice before cancelling?? It's a membership coming to an end when it's suppose to, I am not cancelling my membership before the membership end date. So my last payment should be end March but because i didn't give a month's notice before cancelling my last payment will now be at the end of April. How dumb is it that i have to cancel a membership already coming to an end.