This is the best summary I could come up with:

While she has not determined an exact cause, Nitu suspects her residence is being used as a return address for sellers or third-party handlers to dump their unwanted products.

Third-party sellers who use Amazon fulfilment centres are required to pay for picking and packing orders, shipping, handling and product returns.

When a seller’s returned products can’t be re-sold, the companies are charged with removal and disposal order fees.

The BBB also referenced the Amazon brushing scam, where companies would purchase products and have them sent to random customers so they can write verified reviews.

UPS told CBC they intend to investigate the issue but do not wish to give an official comment until they’ve contacted Nitu.

After numerous emails and hours on the phone talking to Amazon and UPS customer service, Nitu says she has made no progress in stopping the deliveries.

I’m a bot and I’m open source!