The numbers used by before

It is supposed that Mobilis, Ooredoo, or Djezzy should block old numbers that have been used before and resold. We are suffering from strange calls to the old number I bought again 🤦🏻, especially women who call a certain number and when we tell them they are mistaken, they persist in calling even though we tell them the number was previously used and resold by Mobilis 🤦🏻🤦🏻🤦🏻🤦🏻