Mondo poor service

Mondo active a new MTN contract without my approval on 26 July 2021. I called Mondo the same day and asked for cancellation which I was promised that it will happen within 24 hours. That became 48 hours then 7 days then 14 days etc. Numerous calls e-mails and ref numbers did not get any reaction from any body. I was then told to cancell at MTN and aftet numerous calls must pay for cancellation. Mondo only offerd another contract. POOR service from both companies especially MONDO