The Pompey ticket office in Anson Road will be closed over the spring bank holiday weekend.
Supporters will still be able to renew their season ticket for the 2024/25 campaign online here.
Click here for full details, including key dates, prices and credit options, and click here for the answers to some frequently asked questions.
The club shop is also closed on Monday, but will be open on Saturday as usual. Click here to buy online.