Untruthful promises to join

I'm deeply disappointed with the way I was treated when I joined Planet Fitness Olympus. On 29 May my wife and I went to enquire about joining Planet Fitness Olympus. Danielle assisted us and I told her that we could only start paying gym fees in July and will therefore join in July. Danielle said it was not necessary as the first month is for free and that you only start paying the second month. I then said that we will join in June. Once again Danielle said it was not necessary as it was past the 25th of May and therefore we will only start paying on the 25th of July. I told her again that it was very important as I would only be able to pay from the 25th of July onwards. She guaranteed me that it will be the case. On Monday 3 June I went to the gym for the first time and paid the initial administrative fees. I asked when the first payment will be due and was told that it would be 25 June. I asked to see the Danielle, but she was not available and another gentleman was called to assist me. and told him that this was not what Danielle told us. He told me that he would make the correction immediately. This did not happen and on 25 June payments were deducted from our bank accounts. I immediately contacted Danielle but she did not respond. When I eventually got hold of her she told me that it would be rectified. Unfortunately nothing was rectified and I contacted two different managers at the gym. Both promised that they will get back to me. To date this has not happened. It seems that the Planet Fitness is only interested in getting you to sign contracts but they are not willing to rectify mistakes they have made.