Plumper help

VADO bath/shower mixer cartridge replacement and bath resealing. The fault has already been inspected and diagnosed. VADO Product Support has identified the valve as a SOH-148 and has supplied the correct replacement parts: - CEL-RETROFIT/B thermostatic cartridge - CEL-RETROFIT/DIV diverter cartridge I need a plumber to: - remove the existing cartridges and fit the supplied replacement cartridges; - test both outlets (shower head and bath filler) and confirm the leak has been resolved; - remove the old silicone around the bath and apply new sanitary silicone. The replacement VADO parts are already available, so no parts sourcing or separate diagnostic visit is required. I also have the previous inspection report and photos of the valve and affected area. These can be provided once the task is accepted.