Created a removal order but have not received the number of units requested.

Have received a message saying removal order is complete but obviously it's not as i've not had the items returned to me. Had two units of the product returned in separate deliveries (why??). Another three units outstanding but can't find anywhere to say they're en-route. They have essentially vanished.

Going round in circles on seller central (user experience team really needs to up its game here) about which automated response chat cycle i need to enter to get to the bottom of it.

Help!