I want my refund

From day 1 I literally had to fight with these people to get the service I want. My last straw is when they incorrectly debited my account R1700 and took their own time resolving the matter. I alerted them about the debit on the 4th of April via a phone call which was a weekend granted but today it is the 20th and I still haven't received my refund. Secondly, I reported an issue with the device on the 11th of April the sent an email that the ticket was logged, and they will dispatch someone to come check it out, no one came to check it out yet on the 12 of April I received another email that the ticket has been closed. I still have that device issue. I am changing to another provider it has been a year of one fight after another.