Prepaid Renewal Problem

My prepaid phone is expiring and I need to renew it for a year. Last renewal I paid 10 dollars for 100 minutes, which are good for an entire year. I just renewed on the ATT website for 10 dollars but the minutes expire in one month. I only use this phone very little for emergencies so only a very small amount of minutes are used, and the rest are unused. I need to renew for a full year, but don't want, or need, to spend 100 dollars for a vast amounts of minutes that will never be used. Besides that, I'm unemployed because of the virus crisis. I already spent 10 dollars, but I didn't get renewed for a full year like last time. How do I fix this? I was on hold for customer service for almost 2 hours, then they hung up on me.