18004253388 is the toll free number using which you can get in touch with Nokia Mobiles customer care department. You can call on the above given number for any issues related to your Nokia Handset. Always keep the original bill and other warranty documentation handy.
Alternate number: Alternatively, you can also call on STD CODE + 30303838 if you have trouble using the above given number. Please note that this number may be chargeable as its an alternate number.
Karakaari 7, P.O.-Box-226, FI-00045, Nokia Group, Finland
Use the above link to contact customer care for any issues related to your Nokia Handsets.