Bad service Rude Manager

I was by Papachinos for family of mine for there childs 1ste birthday party My Grandfather was there and was treated very I'll by the Manager when asking for another table because the sun was to much for him he is nearly 70 and was tretend and disrespected by the Manager. The Manager throug away the Menu and took away there food by the other table and told My Grandfather that he should not try him in an disrespectful way i feel no person should be treated like that expressly an elder man very very rude manager and very disappointed