4 reference numbers, but still no feedback from OneCart

OneCart sent me a voucher as I haven't shopped with them for a while. I placed a new order, used the voucher and paid the balance with my credit card. However no goods were delivered, apparently they were out of stock. I am still waiting to be reimbursed. I now have 4 reference numbers, but no goods and no cash. Truly pathetic customer service. Customers should should rather rely on the likes of PnP ASAP, Checkers Sixty60 or any other service provider - one that actually cares about their customers - not like the idiots at OneCart.