HDFC Securities — Daily Spamming as a Matter of Routine

Dear sir,
As brought out earlier, I continue to get at least three spam mails from daily from HDFC SECURITIES . This cheap and worthless company is in habit of spamming and despite numerous complaints has not stopped spamming despite receiving my complaint through email and through you.
I don't understand what they are trying to prove except that they are renowned SPAMMERS.
VERY soon they will all come under data protection cat and then will be liable for prosecution. Cheap companies don't care for PRIVACY, Customer Grievances and are only self centered. They have NO repeat NO system of informing them about their complaints if you are not their customer. They have no complaint or compliance cell.
It is very sad that the parent org is headed by a renowned person like Mr Deepak Parekh and Mr Shashidhar Jagdeeshan as CEO of HDFC Bank and Mr Dheeraj Reili as CEO of HDFC Securities.