Khadi Gramodyog Bhavan — price of musical ganesha set - billed 440 rupees

Address:

600018

Ref bill no: 33 (Bill attached)

On sunday (15-sept-2019), i visited madras sarvodaya sangh khadi vastralayam around 6:30 pm. I purchased ganesha musical set. Bill amount is 440 rupees.

I also visited kadhi, gopalapuram branch to see exhibition cum sale. Musical ganesha set is 405 rupees only.
Why same set is billed rupees 440 but less in another branch of khadi?
This may be small amount but not right. May be im one among the million customers billed more.
I regret visiting mylapore branch khadi and buying a set with higher price.
Unhappy customer