Clean both sides of toilet DOORS

In May 2019 while visiting CANAL Walk shopping centre Irequired a visit to the toilet during a lengthy visit. It was disappointing to me that the inside of the toilet doors had not been cleaned (first noted in 2016 on hello peter). This inside surface is either a white or cream painted surface and near the door locking mechanism and handle it was nearly brown in colour due to the accumulated hand grease, food residue and other residues. Please can the cleaning staff be trained to clean both sides of the toilet doors. This really is disgusting and while it is the first time reporting it to Canal Walk, this has been noticed for over FIVE+ THREE years .

If the inside door is stained, then could the cleaner report it to the shopping centre so that it can be repainted.