I also ordered the on-walls. Debbie (Axiom) will send you shipping notification with tracking info as soon as they ship. I've not received my notification email yet either. I only refresh my inbox every 3 minutes or so showing great patience.
I'd checked earlier in March and Debbie said they were on track for March shipping, but then Ian updated with the slight delay in the forums, so it looks like they slipped into April. However the notifications are going out, so should be any minute now! Wait for it....refresh....wait for it....refresh grin

Cheers,

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1