Anything to get the sale i guess

So I take out a contract at Virgin active in rooihuiskraal and they tell me that if I go 24 times before the end of September I get around R700 back. So that sounds great and I make sure I go the number of times needed. Due to unforeseen circumstances my debit order on the 01/10/2015 does not go through but I contact them to ask them to re-debit my account. Now I query where my payback is and I get told that in the terms and conditions (which were not mentioned besides the fact that I need to go 24 times before end of September) that if a debit order should bounce till October I will not qualify. So what now I ask???? Stuff all... all the call center agent can say is sorry that it was not disclosed.... this is shocking to say the least!!