The dive shop has to provide you with a pass code after you pay. You will access through that. The pass code is purchased from them directly. If you can’t manage I can give you a pass code and collect payment directly. But I need to know from them about whether they can arrange for you, or if they are fully booked. Write to melissa@silverdivers.com The number you have is correct I believe. Strange that they are not picking up. They are normally very responsive. I am sure all will be fine anyway. Let me know.
LC