How do I get rid of this?! Nothing is working

[legap]

Any ideas please!

Have you tried pink stuff?

astonish mould and mildew spray?

What have you tried so far ? Mould remover spray and those very thin scrubbing brushes might work

Vikal spray?
Mould and mildew spray?
The pink stuff paste?
A decent but thin scrubber/brush too.

Mould tends to grow on top of limescale so use some vikadal or other limescale remover then a mould and mildew cleaner/vinegar and then dry the area after each use, letting it stay wet is what will cause this to build up again.

I use some flexi bottle brushes for difficult areas like this.

The main issue is trying to access it? I cant even reach that main bit! I have just tried bleach so far

Flash spray with bleach, and a diddy toothbrush. Some kids ones are really bendy and small.

Bleach won't clean it, you need a limescale remover first.

Look up pipe cleaners bottle brushes on amazon.

I've got a steam cleaner that I can use to blast a jet of steam into places I can't reach.

Fill it Bang black mould spray (think it's in a purple bottle)

Works a treat

Cillit Bang

How long did you leave the bleach on? Neat bleach will kill mould easily but needs time to work

https://hg.eu/uk/products/hg-limescale-remover-concentrate-500ml

works on mould and lime scale, brilliant stuff

The good one cleaning paste or bar keepers friend on a cloth , on a spoon handle (like a glove puppet iyswim)

Pink stuff and a bottle brush that angles

Buy a straw brush.

I use bleech and squirt hard to make it reach, then leave it overnight

Does this happen on most sinks?!

Scrub with a bottle brush and bathroom cleaner such as Flash that contains limescale remover. Then get some white vinegar and scrub again with that to completely dissolve limescale.

Second HG!

@legap what id the surround made of? Some cleaning products can damage marble/ quartz and the like