Motorola Solutions — non availability of sd card after servicing

I have got my mobile phone repaired from service center : ste-216- the mobile unique, address : ucp 011 bengal ambuja house dev. Ltd, city center, durgapur, west bengal-713216. While i handed over the phone for repair on[protected] two sim cards used in the phone was given me back but not the sd card. The problem with the phone was that it's display was vanishing as soon as contact was made with any one. I got the phone repaired by paying rs 650/- and at the time of delivery i found that the phone was performing ok after the sim cards were inserted by desk operator.
Later i connected my phone with my pc and found that my sd card data was
Missing as there was no sd card inside the mobile.

Details : motorala, xt1550, moto g, imei / sn no. [protected]

I shall be highly obliged if necessary action is taken to return my sd card.
Thanks,
M. K. Bandyopadhyay,
Mob. No. [protected]/[protected]