I got value vouchers in a raffle the other day and it said they were for Shari's shop. Does anybody know where it is or if it's still open?

The Value Voucher is an event item during Res Reduction. Shari's shop sold tons of items in packs and in discounted prices and you will be able to avail them if you have a voucher. Unfortunately, the shop isn't open as of the moment so you might have to wait until next year when the shop is open again.