A few months ago, i posted a thread about how Capitastar app screwed me over and made me throw face in EDMW. The mods deleted it. Probably someone from CapitaLand saw and didn't like.
TLDR; It was the anniversary for me and my lady. I stored up almost $1k worth of eCapitavouchers, with another $500 in $Stars. Went with the lady to go buy a Kate Spade as a gift, but end up couldn't make payment as the Capitastar app was down that day. Super awkward at the cashier while i fumble with the app and cashier + lady staring at me. End up the lady had to pay for her own bag as my other cards were already at limit (i set card limit for all my cards at cashback cap to minimise damage in case of fraud).
Anyway, been trying to use it for other random crap since then. I'm not sure why, but quite often shops will say that they are currently unable to accept eCapitavouchers due to "technical problems". The Chaterraise at WestGate is especially bad at this. Went twice, with like a 1mth gap in between. Both times they claim to have technical problems and didn't let me try to pay with it. Haven't went since.
So moral of the story: this is not a reliable means of payment. Don't store up too much, or you will struggle to use before expiry date. Though i suppose there's always the failsafe option to spend it all at NTUC.