What is the legal ruling regarding goods for which the buyer refuses to pay shipping costs again after they have been returned to the seller, and is there a specific time period after which the seller has the right to dispose of them?

It is permissible to sell described goods via electronic platforms with advance payment.

If the buyer delays in receiving their goods and they are returned to the seller, the buyer is obligated to pay the shipping fees.

If the buyer abandons their goods and does not respond to the seller's communication, the seller may sell the goods and return their price to the buyer by any possible means.

If the buyer cannot be reached, the seller keeps the goods for a period, such as a year, then donates their price as charity with the intention of guaranteeing it for its owner whenever they appear.

It is preferable to include an explicit condition in the contract specifying a certain period for disposing of the goods after the customer's delay in receiving them.

The goods do not become the property of the seller, no matter how long the period, rather they are disposed of as charity on behalf of their owner.