Stylus Tips for Onyx Boox Max 2 Pro

hello,

Does anyone know where I can buy a value pack of Wacom tips for my stylus that came with Onyx Boox Max 2 Pro?

I am based in Europe, so I normally get the official Boox stylus tips from Amazon Prime (Germany/Austria). The price of 5 tips used to cost 10 euros, and now it has gone up to 15 euros. I get through 2-3 tips per month (drawing/sketching/writing intensively). I don't press hard but I think my screen protector wears the tips down.

So I would appreciate any advice on if there is another source where I can purchase the wacom tips from?

Many thanks!!