Debit order gone wrong

i am a new member to momentum health. in the middle of April i phoned momentum health to change my start date as my current medical aid will only be terminated end of may. They asked me to send the necessary documents which i did. I then received my contract which states that my start date will only be as of 1 June 2015. Only to find that i was debited this month??? Because of your lack of professionalism i have 3(including yours) debit orders that was bounced and i was charge R90.00 per debit order from my bank which YOU are responsible for!!! i had trouble joining momentum from the start and also to change my start date. YOU cost me R270.00 for debiting me on the WRONG date. So please do me one last favor and CANCEL my membership!! i WILL NOT be part of your **** service!! I WILL also tell everybody to steer away from momentum. Believe me word of mouth will flow.<br> Thank you for nothing :)