Received Cashback of 50 in HDFC CC

I also received but unsure of which campaign is this for. Any idea anyone?

I received it too

Offer Detail
▸ HDFC Bank brings you the HDFC 57 Offer wherein you can get 5% Cashback on 7 categories by simply spending online across 3 or more below categories:

HDFC Offers

1. Telecom & Cable

- Telecom & Cable include payment for telecommunication services, cable and other pay television services like Airtel, Tata Sky, Netflix, Amazon Prime, etc.

2. Wallet

- Wallet transactions include spending using e-wallets like PayTM, PayZapp, Mobikwik, etc.

3. Online Shopping

- Online Shopping include online stores like Flipkart, Amazon, PayTM, Tata Cliq, etc.

4. Utilities

- Utilities include payments made towards electric, gas, water, sanitary bills

5. Groceries

- Groceries includes grocery/meat/confectionary/dairy/bakery/packaged stores like Jio Mart, Amazon Pantry, Grofers, Big Basket, Swiggy, Zomato, etc.

6. Apparels

- Apparels include stores which sell men, boys, women, girls, sports clothes like Myntra, Decathlon, Adidas, etc.

7. Insurance

- Insurance includes payment towards insurance premiums

- Offer Duration
▸ This offer is valid on retail online transactions made through HDFC Bank Credit Cards between September 17th and October 30th 2020.

Offer Duration

▸ This offer is valid on retail online transactions made through HDFC Bank Credit Cards between September 17th and October 30th 2020.

- Offer Conditions

For a person to be eligible for this offer, he/she should have unlocked at least 3 or more of the following categories – Telecom & Cable, Wallet, Online Shopping, Utilities, Groceries, Apparels and Insurance.
Only transactions above Rs. 500 would qualify for the offer.
The maximum cashback that can be earned using this offer is Rs. 50 per category.
Only 1 transaction per category would qualify for the cashback using this offer.
In case a Cardholder has done multiple transactions in a category, only the qualifying transaction with the lowest value would be considered for calculation of the cashback value.
Click here for General Terms and Conditions.

Received Rs.75 for this.
I never receive any sms for these kind of offers.