Not Treating Customer Fairly and Very Poor Service

This morning I received a call from a collection agent from Intellicell, telling that I must pay. I previously raised a complaint, as I wanted to pay over the counter but you have not provided me with any banking details for the past 2 months by email or text message. I was told this complaint was resolved but I didn't request for the complaint to resolved. Also this agent didn't wanted to listen to me and just spoke over me like I'm her child. I would like a copy of your complaint procedure and this is very unprofessional and have escalated the complaint now to ICASA, as treating customer unfairly. I would like a letter of apology and the 2 months to be written off with immediate effect. my contact number is ***and my ID number is ***08 9.