Cat food no longer available

I’ve had 3 cats that have reached the age of yours GardenerGran and they got fussier with food as they aged.

It’s annoying you can no longer get your preferred one.
I’ve gone through the brands you mention and our 12 year old no longer seems to like any of them. She now has dry prescription food recommended by the vet - cheaper to buy online (Royal Canin) - plus either tinned tuna or cooked chicken every other day.
3 sachets sounds a bit much to me although I’m not a Vet.

I buy British chicken strips meant for stir fry, £2 a pack from the supermarket and lasts our Ruby 2-3 days.
There is at least one other Gransnet member who I know has a cat companion with hyperthyroidism of a similar age to yours and she may be along may to share tips with you.

Any cat meat pouches I get and they are refused by Ruby, I take the remainder of unopened ones to the cattery where stays when we take a holiday (remember those) ? They are always glad of them.

GardenerGran My Oliver has been through every cat food on the market he gets so bored with the same one but he never gets bored with Sheba so you may be right and it has some sort of addictive ingredient
He does however enjoy fresh chicken and I buy 2 x small chickens from Aldi every fortnight and share it between him and my little dog,the amount you are spending seems excessive to me does that include his medication ?

*GardenerGran+ if you could get to Oxford I could give you many pouches of Gourmet Perle wet cat food which my cat doesn't like! You would be very welcome. None of the cat charities seem to want it, they only want Whiskas and Felix.