Citi bank (India) asks all the time, so does almost every Google web app. Some other offenders are ones like movie/event booking site like BookMyShow. But BMS a

Citi bank (India) asks all the time, so does almost every Google web app. Some other offenders are ones like movie/event booking site like BookMyShow. But BMS are such shady spammers that I had to create specific filters to receive only booking confirmation in my mailbox. I had created <my email id>+bms@gmail.com and the next day my spam label count was in triple digit. ICICI Bank does, HSBC India does and I would like to add that these two are excellent spammers too. I suspect HSVC India's "unsubscribe" link results in an response "LOL" internally, or it just points to a static content that just shows "Successfully unsubscribed". Anyway, the only time I need notification is when I am chatting with tech/customer support and I move to other tabs/windows in between. I guess pretty much all the sites are inching towards being spammy and click-bait now, at least the ones of major companies.