incorrect debt order amounts

i am so disgusted with the **** the gym does,You rob both your clients and sales man/women...I joined planet fitness in November last year and was advised that i was going to pay R99.00 per month for 3 months then it would go up to R199.00 permonth for the rest of the months,i then saw a deduction of R349.00 and ignored because i assumed that it was for maintenance,then again i was charged ,then this month i was charged R718.00..what are you trying to do Planet Fitness...