Please check their opening times through the following link
The drop-in session in Luton is open 10:00 a.m. to 12:00 p.m. Monday, Tuesday and Thursday on level 2 of the Campus Centre during term time. 
The drop-in session in Bedford is open 10:00 a.m. to 12:00 p.m. Wednesday, Thursday and Friday in P0.31 Student Support (near the Hub) during term time.

You can contact them via email at studentmoney@beds.ac.uk.

Please note, these times may change due to staffing, please contact SiD by logging an enquiry or calling 0300 300 0042 for drop-in times in coming weeks.