hello friend thanks for helping

actually i am already in canada on student visa.i have more than 3 years work experience as banquet manager . i have all the documents and 71 points but the problem here is that my job was on cash and i don't have any pay slip to show.
Q 1. IS THERE WOULD BE A PROBLEM ?
Q2. DO THE EMBASSY MEMBER'S MEET PERSONALLY TO THE PAST EMPLOYER .
HOPE TO GET A GOOD ANSWER .