Zoomfibre poor service

I installed zoom on the 20th march today it's the 7th April it hasn't worked, I didn't contact you several times and on the 25th march I filled for refund and I was told the manager has actioned the refund but till today the money haven't reflected to my account and I was told it will take 1/2 days but it has been more than that. The zoom fibre needs to be closed you demand money before installion then after receiving money you no longer pay attention to the customers. I've filled a case now cos I have proof of payment and proof of all your consultants who have been lying to me. I really don't understand what's difficult in giving me what's mine.