I had a problem with my tooth years ago and had it filled after root canal treatment but ended up having it crowned so hopefully they'll be able to crown yours.
Sadly mine is coming out next month as my previous butcher dentist didn't remove all the root and I'm still having problems. I could have had it redone but as we are talking thousands (specialist treatment, not standard root canal and crown) I'm having to get over my vanity and lose the tooth!
I hope you can get yours sorted and it's not too expensive!
My do has 2 nhs crowns recently, one white one gold, certain teeth got white but passed a certain point its gold, the white one was in his 'cheesy smile' the gold one a tiny bit if he does a huge huge one