The Ticket Office phone lines will be open from 11am until 4pm on Saturday for Season Card renewals and new purchases.
Season Card holders for the current campaign will see their Season Card automatically roll over for the coming 2021/22 campaign.
The Early Bird window, which runs until 5pm on Wednesday March 31, includes prices for both 2019/20 Season Card holders who chose not to renew for this season, and new applicants.
The number to dial is 01642 929421, with calls charged at your local call rate.
The Ticket Office phone lines will be closed on Sunday, but supporters can renew or purchase online at tickets.mfc.co.uk
Please note that in line with government guidance, the Ticket Office at the Riverside Stadium remains closed to in-person visitors at the moment.
For more ways to buy your Season Card, including postal applications, visit our How To Buy section.