Monginis Cake — Cake was salty and sour taste

Address:

401 , ananya apartment , sec 19 , kamothe , navi munbai

Good evening sir / madam.

I'm shankar sundaram. I bought half kg rasmalai cake from your a. V enterprises (Sector 34, kamothe, navi mumbai) branch.
The cake was sour and salty taste instead of sweet, we went to the shop to complaint our issue. Shop owner tasted the cake and she said it is perfectly fine. We are tried to explain she denied. Then 3rd person was there who was eating chocolate pasty. She gave to him and asked how is it.
The person taste the cake and said yes he was right (Me) cake taste has something wrong, its sour.
Then she said write feed back we will solve your issue.

50% cake i served to some children, now what about them health.

They already eaten the cake.

We really disappointed the shop owner's behaviour and service.

And one more thing she said cake has date barcode is it true? I have scanned there was nothing.

I have attached the bill and feed back letter.
I don't want my 500 rupees i want justice.

I'm waiting for your reply.

Thanku
Shankar sundaram