2 day voice mins expire after 27 hours

I bought a 2 day 4U voice bundle at around 9pm on Tuesday. This morning since early morning on Thursday it had expired, presumably at midnight. Surely you can’t say “2 days” when it does not last 48 hours? I had mine for less around 27 hours! I would like to get the rest of my bundle back please. They should really last for a full 2 days. What a joke! ****************!!