KFC India — Service is providing very less quantity then the proscribed level and not providing invoice

Address:

No 632/1A & 1B,karaipettai, Kanchipuram,631552,Enathur village Be meenakshi hospital & medical College,chennai-631552

I have purchased 3 medium popcorn chicken for takeaway when I opened the box after reaching home all the boxes where half empty

They are not giving the bill to anyone when I asked for bill the cashier went inside to call the manager and made as to wait for 10 mins for the bill

They are not asking permission of the customer for the paper bag before billing we came to know that they have charged for the bag without asking me
And I asked for the French fries and pepsi combo but they only billed the French fries when I asked they said I have only order french fries and French fries - lava cake will not come as a combo which is not I asked for
It's one of the worst experience I had with KFC it's so disappointing