How are problems with online shopping called?

Верно ли следующее утверждение:

Problems with online shopping are called online shopping bugs.

What can the problems with online shopping cause?

Do the problems with online shopping happen frequently?

What are problems with online shopping which may occur from time to time?

Верно ли следующее утверждение:

Some online shoppers choose to do their shopping online specifically because they work odd hours.

Верно ли следующее утверждение:

Four years ago cyberstalking was called it online harassment, online abuse or cyber-harassment.

Why do some shoppers choose to do their shopping online?

What are the problems that are significant enough to make a potential online shopper reconsider the decision to purchase again?

Верно ли следующее утверждение:

Online shopping has many advantages.

In online shopping, how can a customer purchase a wrong item?