I had read previously you'd mentioned they'd refunded 28,000 and now another 68,000 ... bringing in my mind the total of 96,000 refunded so far to your customers. At this point counting the cost of items sent out only confuses the matter, because that only matters if most of your customers opt not to repay you albeit using something different. Clearly apparently good customers opting not to repay, would be odd in a regular online business.

If you've not heard from customers it's a fair guess that either no email was sent to them to inform of a refund, or your customers are not the sort of people who check their emails every day / week. Once your customers realise I guess it'll sort it self out, even if it's a bit messy. I dare say most of your customers won't be checking their bank balances every day, and even if they do they'd have to get a break down of the balance to work out where the extra money came from.