Below is reply from Amstock after my email to them at : [email protected] so it can be done by emailing them
Based on your communication below, your account is no longer considered dormant, and you do not need to do the verification process on line. In order to update the address and certify your residence, the W8Ben form must be completed, signed and returned to our Data Entry Department by email ([email protected]), fax to 718-921-8100 or the mailing address shown below.
In order to prevent the escheatment process in the future we recommend that you send a W8Ben to us annually and periodically view your account via our website. If you have not registered your account on line, you must have a PIN to register: Please utilize the following link to get a PIN:
The company number for Biota Pharmaceuticals Inc. is 17942. If you do not know your ten digit account number it can be located under the barcode on the bottom of the notice. It directly follows the company number referenced.
If you require additional information, please contact us.
