Customization Work on Wordpress Website (ListingPro Theme)

General information for the website: Directory for household device repair companies
Kind of development: Customization of existing website
Description of requirements/features: We want some minor changes here and there like customizing the template pages, deleting headers, changing URLs within the website, changing Button-colours within the template etc.

Also maybe fixing the correct process of 'Registering -> confirmation mail' or 'Buying packages -> confirmation mail'. But we have to look into this first.

After the customization and when we are pleased with the work, there will be follow-up jobs for the ongoing work on the website.

The Wordpress-Theme installed is the ListingPro:
https://themeforest.net/item/listingpro-multipurpose-directory-theme/19386460

If you need any more information, don't hesitate to ask me.
Extra services needed: Customization, Optimization
Extra notes: