Refund not processed

On the 20th of January I was Debit incorrectly. I immediately called the call centre and was told that they will look into it. A couple of days later I had to call back to find out what the progress was. Every other time I had to call to get feedback on the progress of the query. Up to today I still have not been reimbursed. Every time I get one story after the other. One lie after the other. One empty promise after the other. This is the worst customer service I have had. I feel like moving my business to another service provider.