Naturals Unisex Salon — deceptive pricing

Address:

Hyderabad, Andhra Pradesh, 500081

Today i went to natural salon in madhapur, hyd for hair oil massage priced 350 and this service generally by default includes hair wash after the massage.
But today i was charged 708 in total saying hair wash is chargeable during billing time. The receptionist name was mr raj.
I feel this is unfair because it's very illogical to charge extra for hair wash after a massage.