Wix Custom work

website URL: [login to view URL] issues , It involves custom work 1. When customers receive a msg, they receive a then you a msg that we need to edit or cancel 2. We, customers, proceed to check out, they receive a window asking if they wish to register by FB account or continue as a guest. We need to cancel this and also cancel the option of checking out as a guest 3. When customers enter any detailed address, it is not identified. I understand that Wix does not allow customers to pin their location on a map but do we have the option to make a drop-down menu with a list of zones then they complete the address with free text 4. template on IOS does not seem to be centered 5. There is a blank screen appears for the first time on the landing page and you need to click on X to disappear 6. We would like support to make coupons for new customers