Struggle to cancel with a lot of problems

My daughters and I sign up with gym company in 2018 not happy at all 1st on the day we sign up we asked Duncan (manager) for only 12months contract as they have been in matric he said not a problem but mistaken to find out a few months ago he didnt do what was asked and sign them up for 36months 2nd issue debit orders was on my account for all 3 debits but gym company decided they only going to start my one daughter debit 3months ago and now want to hold me responsible for there mistake 3rd problem there staff is not very friendly 4th for the times I went to gym some of the equipment wasn't working in the spa 5th issue gym instructor was rude several times canceled on my left me waited for him just to tell me I must go. 6th issue I went on the gym company on the 15th of February 2020 to get the contracts canceled I first spoken to the manager not very friendly or helpfull and sent me to account lady Mpho she assist me but couldnt help me said she will sort it out on the monday with another lady and will call me on monday today is Wednesday the 19th February 2020 problem still not resolved no call received from Mpho and still waiting.