Order incomplete after 6 weeks - communication lacking

I placed an order almost 6 weeks ago for a pillow and a mattress protector. I received an initial order confirmation email and no further feedback for weeks. I called in multiple times and eventually received the pillow after about 4 weeks ... and an email asking for a review. I've been communicating on this email thread and calling in multiple times over the past 2 weeks, but there doesn't seem to be much concern or haste around this issue. I still don't have the mattress protector and am still needing to follow up from my side due to the poor communication. Although the email requested a review, there was no apology when I explained the situation and that my order was not in fact complete. Very disappointing customer service.