Deep clean of shower - Remove black mould and Build up

Looking for someone experienced in bathroom cleaning to complete a thorough deep clean of our shower. There is black build-up/mould-like staining along the bottom edges of the shower, particularly where the wall meets the floor and around the silicone and grout. We have tried cleaning these areas numerous times ourselves but haven’t been able to remove the black staining, and it seems impossible to get clean with regular cleaning products. We are looking for someone with the right products and equipment to tackle this properly. Tasks include: * Deep clean the entire shower, including walls and floor tiles. * Remove black mould and grime from the bottom edges of the shower. * Thoroughly clean the silicone seals and grout. * Remove built-up soap scum, dirt and residue. * Pay particular attention to the corners and hard-to-reach areas. * Leave the shower as clean and fresh as possible. Important: You will need to bring your own professional cleaning products and equipment. We are specifically looking for someone experienced in removing stubborn mould and bathroom build-up.