canopy2k
Did you read the trial membership application? It states in part:
Program Overview:
$19.95 cost for duration of program Membership valid for 3 months from date of acceptance, expires at end of 3rd full month, USA only. Fees are transferable to a full membership within the ninety day program
(You must contact the AMA Membership department at 1-87-RENEWAMA (1-877-363-9262) before your trial membership expires).
https://www.modelaircraft.org/trialmemberapp.aspx