PhonePe — false and misleading advertisements

Address:

Jaipur, Rajasthan, 302017

I have recahrged with rs. 399/- on jio by using phonepe services. I have applied a promo code for flat rs. 90/- and the condition was that its applicable on upi or upi+wallet balance. I had rs 180 in my wallet and remaining amount paid by my bank ac. I have not received any cash back till now and when i aksed for help they denied and told me that this offer was only applicable on upi payments. I have the screenshot of the offer guidelines in which they have shown that offer applicable on upi and upi+wallet balance.
My ticked id is ticket id: #11560932
And trans date 17/04/2018