There are ATMs dotted throughout the Altstadt, including some right across from the tourist office.
Tourist Office There's a wealth of English-language information on offer here, as well as a touchscreen information kiosk outside that's available at all hours.
Travellers with Disabilities
Celle's tourism website has a page dedicated to accessible tourism and a downloadable city map at www.celle-tourismus.de/barrierefrei.html. You can also contact the tourist office for more assistance.