You were lucky to get any tomatoes at all. Mine have succumbed to late blight and the whole lot are going rotten on the vine. They'll have to be burned. Apparently it's caused by one or two warm humid nights. Strangely enough, the potatoes had a good crop with no blight even though it's the same fungus which causes it.
Take them off the plant. Place in an egg box by the windowsill next to some ripe ones. Or bananas which release ethene gas more than ripe tomatoes do, making the green ones ripen, picking them off the bush makes the plant produce more fruit. Then make chutney out of the green ones. We use a tumbler variety called "Tumbler" .. Commercial tomatoes are grown over several years as semi-perennials if you can afford the greenhouse heating. After getting to the top of the string, they are lead across, down the next string and so on. Its how they grow in the swamps of America. When the locals arent shooting at them in a drug crazed haze or whatever . Blight relies on neighbours making sure you get it too. Our allotment suffers from people who grow loads of potatoes then leave them all blighted spreading fungus.
Followed advice to remove leaves that are shading the fruits and stop watering. Result is a sick looking plant but by 7th October tomatos are actually very nice. If I can avoid frost I think they’ll all be edible soon
Put the green ones in a brown paper bag with an apple, two weeks , hey presto, green toms and a rotten apple. No really it does work.
About forty years ago I had some green tomatoes. I put them in a kitchen drawer and a few weeks later they turned red. Result!
