Income Tax Department — refund tds

Dear sir,
I am from suri, birbhum, west bengal belong with pan no adwpc3336l.
I submitted my itr in time and received message from income tax department that e - verification done. After proper calculated tds, i have to get refund
Tds, for that purpose i send hard photo copy of my bank details and address proof by speed post as per their instruction to get my refund, also edited my recent email and contact no on my itr data profile. But after a long period past neither refund till credited with my given bank account nor any message received through either mail or phone.
Kindly look into the matter to solve the problem for a taxpayer.

Thanks & regards.
Pravat chatterjee
Suri, birbhum, westbengal