Why contacts are getting duplicated even after several merging and deleting the duplicated contacts in note 9

After the latest update phone looks so badAll icons and screen look odd and stinky very badFeels as if we are using some Motorola

My Samsung watch adaptor has gone wrong and I have taken it to service center at ravipuram ernakulamThey told stock is not available now come after two days I have called and enquired its availability and today came to service centre now they are te...