I called a couple of months ago because I couldn't get a redemption to work on the website. It was the middle of the night in NY but working hours in Singapore. The agent said he would have the redemption center call me back. I asked to be transferred and he said they aren't available. So I HUCA, this time dialing the Singapore number, and got exactly the same agent. So I HUCA again, got a different agent, who told me the same story about redemption center not available and they would call me back. So I left my number.

One month later (yes, one month), they called me back to ask what I needed.