Coolpad India — bad coolpad service centre

Address:

Hyderabad, Andhra Pradesh

Sir i am using coolpad note 5
My phone's speaker us not working, i'm given my phone to service centre which is located in secunderabad opposite chermas, they issued me phone and they changed the total body.
My phone was good, they replaced the new parts with old parts, please sir help me.
I purchase these phone doing part time job. For buying these phone some times i worked till morning and attended to the college also.
Plzzz sir help me