If you did, they are currently running an offer if you buy a GX80 you get a free leather case (Value £49.99) and memory card..
as such you can claim on the never undersold...
The offer is like for like, so they are currently out of stock of the memory card so they will not provide the memory card or a substitute, but they will allow you to order the £50 Genuine Panasonic Leather Case (product code 89615018) and once received they will refund you the value..
This is even sweeter a deal if you ordered prior to the 9th of Jan, as it means you get a free case on top of the Double Cash-back so effective value of £349.00 for the GX80 with 12-32mm + Leather Case.
Just contact CS and explain.