Refunding of fees deducted after cancellation

In May 2017 I cancelled my membership tellephonically at the Fish Hoek branch which then money was deducted so went into the branch to fill the cancellation form and a month later money was deducted again so went back the second time to cancel and and filled a cancellation form for the second time to which then I had it finally stopped but was told that I will be repaid the 3 months they deducted previously but received nothing after enquiring for 2 months just to be told that they can't find any cancellation forms even though the receptionist informed the branch manager that I did fill in this form and she gave it to the admin staff for completion....I have waited with no feed back in 2 months from the finance manager.