Absolutely PATHETIC service

I phoned planet fitness at the end of June to move a debit order from the 28th to the 1st of every month. The consultant changed the date of the system before I agreed to the payment terms. And said she couldn't change it back. I refuse to make two payments in order to move the dates. I received a phone call from another consultant in the middle of July saying I owe 1 months payment. I got extremely upset and asked her to change the dates back. She rudely told me that I have to pay the money back. She did not under that I DO NOT OWE ANY MONEY. Now today I had two debit orders go off my account for money I do not owe. This is unacceptable. Please can a MANAGER contact me.