Over charged and unhappy!

I joined Virgin active in Jan. I was charged for Jan. I then wanted to change my debit order date so in Feb I was charged on the 1st and 15th. I was told that I will not be charged in March as the debit order went off twice in Feb. <br> <br> I then changed clubs last week and again was told that I will only be debited in April. <br> <br> This morning I find that my account has been debited and I was not prepared for this amount to be taken off! I called the call centre and was told that it is correct and I have now been charged for April. This is very confusing as I have been told by 2 people that I will only be debited again in April! <br> I am very annoyed at this and need to know what is happening. <br> <br> Thanks