(UK.) Getting hold of bulk artificial sweetener tablets as a more cost effective and better environmental solution?

Hello />
Currently I’m going through at least 200 sweetener tablets per day and it’s totting up to a pretty penny. I’m also aware of my increased footprint due to the plastic waste from the dispensers and that’s not sitting very well with me.

Has anyone had any success in getting hold of bulk sweetener tablets in the UK? I’ve come across pure powder but I am really looking for tablets that I can conveniently refill my dispensers with, as I carry it around in my bag.

Thanks.

(UK.) Getting hold of bulk artificial sweetener tablets as a more cost effective and better environmental solution?