U/s.206AB AND 206CCA Registration

Sir,
 
We have followed the procedure laid down for registering ‘Compliance Check (Tax Deductor & Collector)’ and have also got a ‘Registration Request Acknowledgement’ saying that ‘Your registration Request Number REGXXXXXX has been successfully submitted with following details. You will receive the ITDREIN and other details upon successful verification and approval’. But even after 7 days, we have not received any sort of mail or SMS to the registered mobile number and e-mail ID’s.
 
Please advise us the further course of action in this regard.