Subscribe and Save Listing Inactive

We have all our products listed through FBA and Delivered by Amazon, however one product is Subscribe and Save is listed as Inactive, and stated delivered by Merchant. How do can you get this changed, as we need it to state delivered by Amazon, and have the listing made Active - as this product is selling out of Amazon warehouse - just not with the option for subscribe and save.

I've so far been advised to update the full information feed - but the one available in the Subscribe and Save section states you can't update inactive products.....

Thank you, would appreciate any help on the matter.