Nokia 5200
Service centre complaint

I surender have problem with my mobile nokia 5200 the memory card of moblie is not shown, i had submitted my mobile to service centre at district center janak puri new delhi (india). after keeping my mobile for 45 days, they deliver my mobile without solving my problem .then after some time my mobile have the network problem. and the staff of the same branch does not behave properly

plz look in to the matte