Price bundling is often mistaken for tied selling, but these are different concepts. While price bundling is legal (though strictly regulated), tied selling is an illegal activity. And here’s why.
Product bundle pricing is based on incentivizing customers to make a bulk purchase, i.e. buying items in tandem. If they do not need all the products in the set, they can always just opt for individual products and purchase them separately.
Tied selling implies strict conditions: a seller usually provides a certain product or service on the condition that consumers buy another product. Typically, they are both sold at full price. This approach is rare for the e-commerce industry. Tied selling is traditionally utilized by banks or insurance companies that provide additional services only to customers who subscribe for a basic plan/account.