Is Bark.com worth it - no!!!

I have being using Bark for a year now and i am extremely disappointed. I believe that Barks.com business model is based around ripping of the professionals that use this marketplace. There return of credits policy dies not support the professionals. My Stats below, i earned R20.40 per hour over 45 days (thats less than min wage)

Rand Value R8 433.20 Total Days 45 Cost of 1 Credit R11.60 Used Zar per day R187.40 Nr of Credits used (Sub Total) 843 Bad Leads (Approx conservative) 50% Zar Bad leads 4555.9 Nr of Credit Returned (Count 3) -58 Zar credit returned 672.8 Final Credits used 785 Jobs received 4 Total Zar jobs received R11 600.00 The Financial Breakdown Total Revenue: R11,600 Total Costs: R8,433 (spent) + R1,125 (connectivity) = R9,558 Net Profit: R11,600 - R9,558 = R2,042 ROI Percentage: 21.36% Net Profit: R2,042 Time Spent: 100 Hours Hourly Rate: R20.42 per hour