GST Certificate Does Not Have Digital Signature

Dblack (Business Owner) (25 Points)

16 July 2021  

Our company has bee GST registered since 2 years. Recently one of the MNCs rejected our GST certificate saying it was not digitally signed (the green tick or orange question mark symbol). To my surprise it wasn't. The GST certificate that I download from the portal does not have digital signature. Since then I have made several calls, raised several complaints in the self serve GST portal and they have been unhelpful. They just resolve tickets without even understanding what I need (I have explained the issue in a way even a 5 year old child can understand). 

Anybody faced a similar issue? Any help on getting this sorted? Thanks.