[Resolved]  KreditBee — Sending spam messages daily multiple time to my personal mobile number and whatsapp

Recently I've started receiving messages from KreditBee. Three, Four messages daily. I'm a person who is very much concerned about my privacy. KreditBee sending me messages for me to apply for their personal loan. I haven't registered in KreditBee for any product or service. Still, when I get these messages, made me worried that from where they are getting my personal details from. I tried reaching them through call, no response there. And I tried the customer support mail id. Their response was, they can't see me as a registered user. How come I can be a registered user when I don't sign up for their service. Fetching my personal details without my concern and spamming me is a privacy breach.
I don't want a loan or anything. If I would like to get one, I believe that it's me who must approach the lenders. Not the other way around. I want KreditBee to remove me from their potential customer list.
Please see the screenshot of messages from KreditBee I'm receiving daily multiple times like a medicine.