[Resolved]  IFB washing machine - drain hose — exorbitant price

my IFB washing m/c is under AMC .M/S seetal refrigeration services Ramanthrapur, Hyderabad are authorised service centre for IFB. the water drain pipe on the machine had gone bad at coupling point.
the service mechanic replaced the corregated plastic pipe . they have charged Rs.250/-for about 2 mtr
pipe which i strongly feel is too much. what is the authorised company price ? I have a receipt for the same.
if they have charged extra money can i get justice?