UX/UI Sign up plugin + code from Wordpress URGENT

Our REGISTRARSE/SIGN UP section need an uodate and a proper design / development. We could design a usuabiity together. Maybe a free sign up plugin? + developed CODE ? We look the proper freelance who could create stunning registration in no time. It has to be mobile friendly, clean and UI (User Interface connected as actual is doing sign up, try it!) also must have a feature to add international code forces without 00 or + ex: spain number is +34669171949 need to send via form 34669171949 the prefix spain is (0034) but we dont want 00 neither +. Ex UK 44xxxxx argentina 549xxxx etc we built a good form called CALLBACK/TELLAMAMOS at our website, when a user fill the phone number a list of countries recognizes country code and format that. We are talking of this Sign Up section: [login to view URL] We need actual connections with wordpress, welcome email and pixel for google adwords to maintain. Also actual facebook login, Google and a new LinkedIn login button. Need to be a fast 4 fields sign up form: we could ask address, company name and number at woocommerce section when they decide to purchase a package. 1) Full Name 2) Username/Mobile (country code not 00 nor +) 3) Email (actual welcome email) not necessary confirmation link but welcome email with password + our contacts) already developed this. IMPORTANT a welcome WhatsApp message, 4) Country 5) Google Captcha