First deduction on waiting First Contribution the sart of period of 3 month waiting period

I have sent several notification emails this morning about this this morning i received no reply so i'm assuming this is in order I was requesting my first installment the beginning of my waiting period te be deducted on the 24th of September, my membership isn't active yet other funds like Momentum only start deductions once the membership is active after the waiting period has passed. I'm requesting the same if possible. I informed discovery in advance there will be no funds for deduction now. 1 St of September but i received no reply. The deduction will go off there will be no funds. I'm not paying a double installment to catch up arrears my salary will never allow this