I have rosacea and some of the only products I found I could use for ages came from TBS, but one was usually out of stock in store and I ended up finding something else. Added to that prices keep increasing and they've changed the recipe to some products. It all adds up to lower interest.
I'm not surprised. Anyone who has to interact with HMRC regularly knows they don't have nearly enough staff and they are so behind it's untrue. They likely don't have the manpower to do investigations.
When I had to care for a friend with terminal cancer my boss basically told me to go away and come back when I was ready. Same boss came in one day when I was having a health panic and offered right then to pay for a private doctor. These are just two instances but he is a great boss.
Check with your insurance if you have it, some of them have preferred suppliers.