no follow up after logging a call

after logging a call about my refund on the second of march thursday 2023, I was told there will be a follow up regarding my refund. no one has bothered to call me and give an update or send an email. I have to keep calling them asking for feedback and I still have not yet been refunded after Zoom confirmed there was no installation done on my premises. They really lack sense of agency and the only thing they care about is deducting the monthly fee. I have never been treated so unfairly by a service provider. I doubt they will last for too long if they fail to keep client's happy. I would really like to be refunded as they have already confirmed that I was incorrectly debited