You don’t have a representative for your region. The EU parliament is based on proportional representation, so seats are assigned based on the share of votes for a given party.

If you want to contact representatives, the list per country is the highest level of detail available. Personally, I’d start with the person or party you voted for.

Usually the MEPs aren't really assigned to a region, but to a topic. For the national parliament, depending on voting system, you will still have local representatives. I would look up what your representatives are and then check what work groups they participate in and what most fits your issue. ( You can do that here)