Punjab National Bank [PNB] — cheque book not received

Address:

Rohtak, Haryana, 124112

I allpied for cheque book in november 2017, but till now i did not receive any cheque book.
The bank gave me a tracking id, but its not working.
Please tell me what should i do now.
The bank says that it is dispatched.
But i had not received any cheque book and the tracking id is not working.
Please helpe resolve this issue as soon as possible.
Thanku