Absolutely pathetic service

I had a membership with Planet Fitness Westwood Durban. I was never notified that this was an auto renewal contract. However this is not my entire concern. My two year contract was due to end in February 2017. Thereafter I thought that was completed. I then get a call in November/December from attorneys to say I have a gigantic bill to planet fitness. Now my discreprency is when planet fitness tried to debit my "closed bank account" in March 2017 and it failed why did they not communicate and contact me? Again if they use the double debiting mechanism why did they not contact me in April 2017 when that failed again? This is unacceptable as I can guarantee no communication was received from March 2017 till November 2017. There was no phone call nor sms nor email and they have all these details as they have never changed also how were they able to hand my information over to the attorneys if they didn't have it? I do not see why my name must be tarnished and I must pay a fat bill of over R6000 for someone who didn't do their job correctly. This needs to be addressed urgently. if I do not have feedback I will be taking this further.