Is it permissible to use configurations for the internet after the paid data runs out, knowing that I pay for the subscription but it is not enough, and the internet in other countries is unlimited?

It is not permissible to infringe upon the rights of the service provider company, and the terms of the contract must be adhered to, as Allah Almighty says: "O you who have believed, fulfill [all] contracts," and as the Prophet, peace and blessings be upon him, said: "Muslims are bound by their conditions." This ruling is not altered by the difference in charges between countries or companies, or by the company not being harmed by the increase.