Is there a way to extend CertMaster access?

So I had CertMaster for CySA and SecOT, but I had a bad term and 8 weeks of no studying. Both of those access credentials expired, and I'm wondering if there is a way to get those back. If not, that's fine, but how long does access actually last? Is there a way to get access back without spending money? If I have to spend money, that will be good for me to know.

Thanks
Dan