National Highways Authority Of India [NHAI] — about toll gate

Address:

Bhavani ganesh compound Maryhill, Dakshina Kannada, Karnataka, 575008

Dear sir/ madam

How many times i can pass through the toll in 24 hrs or in one day. If i pay up and down charges

(Eg from mangalore to udupi)

How many times i can travel from these two places up and down

Toll staffs or authorities are saying that only once we are allowed to pass the toll if we pay up and down charges.

Please assist me on this