Los Angeles, March 14: Mariah Carey has been called "heartless" by her estranged elder brother Morgan Carey, who claims the singer has refused to pay for hospital treatment for their dying sister Alison. "She probably spends more on dog food than it would cost to make sure her sister gets properly cared for," Morgan told The Sun on Sunday newspaper, reports femalefirst.co.uk. Alison, who is HIV positive and awaiting brain and spinal surgery, fell ill last year, but has never heard from her famous sibling, despite "desperately reaching out" numerous times. "Your sister is dying and she is struggling and where are you? You think you are so fabulous, but you are a witch. Mariah needs to step up. I flew in from Hawaii last year when Alison was taken off a ventilator, believing she was going to die," Morgan said. "My sister didn't even show up at the hospital. Alison has desperately reached out to Mariah over and over again. We never hear back," he said. Morgan hasn't spoken to Mariah for over two years, but claims he has made repeated attempts to get in touch. "I told Mariah my wife had miscarried and she never even responded to that email either. But that's typical, because the world has to revolve around Mariah and there is no room in the world apart from her," he said. The "Butterfly" singer's family claim they only found out about her recent engagement to James Packer through social media, and that they don't expect to be invited to her wedding. "I don't even think Mariah is in love with James, she's only in love with herself. She is evil. She has always been that way. It's her £5 million engagement ring she is in love with," Morgan said. "It is so tragic that while she is out flashing her big diamond ring to anyone who will pay attention, she can't lift a finger to help her dying sister," he added.