****** by Telkom SA,Angry, frustrated not happy,

I took out a router contract in October the 23rd for R270 a month. I asked since its the 27th how much will I be billed coz it ws only 7 days left to end the month was told they will do pro rate. To my suprise yesterday they deducted R495 from my account. How can i pay R225 for 7 days where else for the whole month its R270. Im very disappointed with Telkom i regret leaving MTN as i never faced such with them. People dont take out a contract with Telkom they rob you day light and I want to cancel mine as in tomorrow.