Remote Fulfillment No Listings Active UK to Germany

I have been successfully selling our products via Remote Fulfillment from the UK FBA to the Germany marketplace. However, around mid-March, the listings in Germany suddenly became unavailable, even though we have sufficient inventory in our UK FBA warehouse.

I have already opened three support cases regarding this matter, but it has now been over a month without any resolution. The issue remains unresolved, and we are unable to sell our products in Germany, despite the listings being active and inventory being available in the source marketplace (UK).

This issue is severely impacting our business, resulting in lost sales and profits on a daily basis.