Refusal to reimburse for services not provided

I cancelled the services with the company about a day after I signed up. This was to do with reworking on my company website but when I realized a day later that I no longer needed the services, I informed them of the cancellation and told them to stop the debit order, which nonetheless went through my account a week later. I then informed their accounts department to reimburse the amount. After numerous email communications with Ashlee from the company's accounts department, it was understood that the amount will be reimbursed. I was then advised to reverse the debit order on my account but it was too late for me to do that. I informed them and another consultant, Ashleigh made an undertaking to escalate the matter with management for a refund as the service was never provided, but all that never happened as I was taken from one person to the other without any resolution to the problem. One of the persons I eventually spoke was the manager who then told me they were not going to refund the amount, giving a lame explanation. I was then clear that the company representatives were full of tactics and refused to refund the amount in question, despite not providing the services as I had cancelled and informed them both telephonically and via email. The level of arrogance they displayed was unimaginable and could only wonder how they treated their customers. In the meantime, they were still hosting my website and I had to take a decision to cancel them after which I found another service provider.