Hi Rem
Hope you are doing great!
Could you share your website URL which helps us to analysis more and we can back with solutions.
We did many WordPress website, including B2B, B2C, Custom Web Apps, E commerce solutions, Web designing using Elementary, Divi builder, Salient etc..
Clients of Wordpress websites always asked a lot of customization for purchased templates, so we did much work to adjust sites for their requirements doing PHP programming for e-mail subscriptions, pop-ups alerts, not standard registration forms and complicated pop-up menus.
All sites were responsive adopted for Win, MAC, iPhone, iPad, Android and Windows Mobile devices.
We are very flexible in working time and communications. I can follow all your requirements and can advice good solutions to accomplish this job effectively and with the minimum budget.
Waiting to hearing from you
Sincere,
Dilip