Why should I get blacklisted due to vodacom?

I am highly upset as I have received an email my contract price will increase, I unfortunately cant afford the increase and in accordance with the National credit Act no company can give credit without doing an affordable assessment and look if they can afford it. I took out a smart small, but I started a new job with half my salary and I migrated to a choose contract all records can be pulled as I cant afford the contract, I signed a two year contract for what I can afford, my expenses exceeds my income and I have all the documentation to support that, I cant pay all my accounts at the current stage and are behind months in some of my accounts, I will take this further to the National credit act and show all my documentation and that I cant afford it as Vodacom is in direct contravention of the credit act and if they give a contract to a person who cant afford it, the client is not liable to pay it. In that case I want my contract cancelled with no penalties or I will take this to the national credit act, with my original contract as I only earned 3500 when I took out the contract which I could not afford. Vodaocm may not extend any contracts to any people who cant afford it.