Statistics would state that. But statistics can be manipulated and if it took the amount of fates added up then yes you would be correct but the calculation works on a fate to fate basis. So yes you have a 1/100 chance to get one each time you do a fate sadly that's the basis. So because of how that works you could get 1 in 1 fate or never get one ever it's just how the rng gods work just keep at it you will get them in time each time you do a fate that's a higher chance then giving up