One of my better selling listings has no button to either 'Add to basket' and/or Buy, this makes no sense to me but does seem to relate to an issue with Match Competitive External Price.

The suggested price is far too low, I am the only seller as it's my brand. This issue looks to have been caused when we added A+ content, no prices were altered at that time.

I am not a new seller, historically this same listing with variations was alsways good for me. Any ideas how this can be fixed?