Fix Ip2Location on Website

Hello We are looking for an experienced senior web programmer to fix some bugs on our website. And adding new features later if interested. We run a 'deals' website. Think about it like directory or a portfolio of items grouped by categories. There's no e-commerce. Only displaying and searching/filtering results. The website is custom php development and was not built on any platform. What we need to Fix: i. We are using [login to view URL] to get the location (city) of the visitor. They also have a chance to enter their postcode or city on a popup when they first visit the website. a. That logic needs be checked and tested to make sure is working correctly. Is it a better ip2location service? b. We need to store that location on a cookie so next time we don't need have to use ip2location again if the cookie is present c. We need to check and test properly the query is displaying the items on homepage (and other queries that display items) to make sure is properly filtering by the location selected Thank you