Clutch Problem 240sx 1991

Hi everyone, i am in a little trouble so i am just gonna try asking few questions here.I Got new after market clutch installed in 1991 240sx hatchback HICAS from this mechanic, drove my car for like 50 km out of nowhere my clutch pedal stop responding, clutch pedal got no pressure.After this incident i had my car parked in my garage for couple of months, for some reason i cant get hold of the mechanic who actually installed clutch at the first place.One of my friend helped me up bleeding the clutch, we changed the master cyllinder which is connected to clucth pedal but there is not enough pressure building up to bring clutch pedal back after we press it.If anyone can guide me, that would be a Big help.i am also willing to take my car to garage if any of u guys can recommend me one.Thanks

btw i am from Brampton area.

have u checked the slave cylinder?

yea we replaced slave cyllinder aswell with used one.