Anyone had similar situation? I sent 3500 units in July 29th, 1500 still not scanned or available, every time I check it pushes investigation date further and further away, it gives date, when that date comes, shows new date. Can I in any other way ask for refund and if so will be be COGS or sales

Anyone had similar situation? I sent 3500 units in July 29th, 1500 still not scanned or available, every time I check it pushes investigation date further and further away, it gives date, when that date comes, shows new date. Can I in any other way ask for refund and if so will be be COGS or sales price