Bad Service

I ordered fibre on the 31st January 2023. The payment of R249 went off my bank account on the 31st of January 2023. On the 1st Feb I decided to cancel my order because of personal reasons. I have tried to contact support and eventually after a struggle had an agent chat with me. who cancelled the order. I was then transferred to another agent who would be able to assist with a refund. I was told that I cannot get a refund by that agent. I have now 14th Feb 2023 received a credit note from them with the following message: "A credit note has been app**** to your Webafrica account, which will be used to offset your next bill." I am not going to have a next bill as I cancelled my order. I want a refund. Not a credit to an account that I am not going to use.