SARS is disgraceful

Sars is robbing us. How is it possible that a retired person pays so much tax. I get a retirement investment income of R18000 a month and I'm taxed R7500 out of that, which leaves us with very little How do we survive on that amount. How do we buy food, pay for electricity and water and accounts. Pensioners worked hard to earn their money to give their family a good life. Retired people should be living a comfortable life. But SARS want a chunk of it. They are disgusting and down right greedy