Indusind Bank — Repeated Daily Spamming

Dear sir,
As brought out earlier, I continue to get at least three spam mails from daily from IndusInd Bank. This cheap and worthless bank is in habit of spamming and despite numerous complaints has not stopped spamming despite receiving my complaint through emails
I have complained to their NODAL OFFICER many times but they are greedy spammers and Every day I get several mails regrading their Credit cards/ Loans etc. .
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. greedy.