Unfair treatment by Blue Lable Connect

I was called by December 2024 by Blue Lable Connect advertising the cellphone contract. I was promised that the package includes a high quality cellphone, 4G data and 120min airtime and I will pay R499 monthly. We agreed on line a the package was delivered to me. I made a payment on the 15th of December 2024 and I was given 1G and 30min airtime. I called to lay a complaint but I was not helped. I went to the bank to terminate the debit order. On the 15th of January 2025 when the debit order did not go through, I was called and asked when will I do the payment. I raised my concern about the data, airtime and quality of the cellphone. The caller promised me that the monthly payment will will be decreased to R330 and I will be given 4G data and 60min airtime and we agreed. R330 was deducted from my account on the 31 January 2025 but I was given 1G again. I called to lay a complaint. My call was received and told to stay on the line as they were confirming my account. I stayed on line for 15 minutes with no response. I tried to call again but no response. I went to bank again to cancel the debit order. I was called again and asked about the payment. I told the caller that I want to cancel the contract as it is not fair and I am not getting the service I took a contact for. I was told that to terminate a contact I must pay R14000 and is I stop the payments my name will be listed on ITC. I am currently confused and humbly need a help please.