Hello
Updating this old thread, with the answer for the question asked by S Karmakar.
Depending upon the requirement and the description of your request , Quota team consider the approval for the submitted quota increase request. As per the
documentation, "If you reserve a static external IP address but do not use it, you will be charged for the IP address" Pricing is provided under the same
documentation link. In order to be eligible to use the IP addressed more than the current available quota for your project, it requires to submit quota increase request using this
documented procedure.