Understanding Society User Support

There appear to be a couple of issues in the Wave C Youth data file.

Firstly, for the pocket money variable "How much money did you receive last week to spend on yourself? Please include pocket money and any allowance you get. But if you have a job, do not include money you earned." variable = YPPKMP

In all other waves it is continuous but in wave C looks odd with lots of missing values

tab yppkmp

how much |
   money did |
 you receive |
last week to |
    spend on |
 yourself?   |      Freq.     Percent        Cum.
-------------+-----------------------------------
     missing |      3,648       82.40       82.40
           0 |        733       16.56       98.96
           2 |          2        0.05       99.01
           5 |          1        0.02       99.03
           7 |          1        0.02       99.05
          10 |          1        0.02       99.07
          11 |          1        0.02       99.10
          17 |          1        0.02       99.12
          18 |          1        0.02       99.14
          20 |          2        0.05       99.19
          25 |          1        0.02       99.21
          30 |          1        0.02       99.23
          50 |         30        0.68       99.91
          60 |          3        0.07       99.98
          75 |          1        0.02      100.00
-------------+-----------------------------------
       Total |      4,427      100.00

Secondly, the question regarding income from employment "What was your total pay last week? If you earned money from more than one job, please write in the total you earned from all of them" variable = YPPAY

is labelled incorrectly as "how many hours paid work did you do last week" and is again not continuous

tab yppay

how many |
  hours paid |
work did you |
     do last |
     week?   |      Freq.     Percent        Cum.
-------------+-----------------------------------
     missing |      3,855       87.08       87.08
           0 |        563       12.72       99.80
           6 |          1        0.02       99.82
          30 |          1        0.02       99.84
          50 |          6        0.14       99.98
          75 |          1        0.02      100.00
-------------+-----------------------------------
       Total |      4,427      100.00

Have these issues been seen before or rectified, as both variables are completely at odds with distribution (range) in other waves?