Bankbazaar — bankbazaar delete my account and data

I opened account with bankbazaar several years back and i continued to get sms and emails from the said company. Despite sending emails and contacting them on phone, they are not deleting my account. I am getting to many sm's and emails from them and their is no option ot stop it despite several attempts.
Also, their is no option on the site to remove your account. Kindly delete my account permanently. My maul id is in. [protected]@gmail.com