Pounding down the door
Pounding down the door (Angol) — This is commonly used both as a positive, and a negative.
If you are attractive and wealthy the suitors, those interested will be around in mass and enthusiastic. If you are in business with a hot new item they will be pounding down your door. This is the figurative use.
If you didn't pay the bills collectors may come pounding down your door. This might be literal.
'Pounding down' is not 'pounding on'. 'Pounding down' implies forceful entry like a battering ram used to breech a fortress.