Hi Linda641,
Thanks for taking the time to post about your issues in the Community. ⭐
We don't have a larger remote I'm afraid. We have the usual one and do have a high contrast version for accessibility but nothing bigger I'm afraid.
You could look at getting a larger style universal remote and using this on the TV box instead. We wouldn't be able to advise on which one but the Community can, or you can do your own research to see which would suit your mum best.
Apologies for any inconvenience.
Thanks,