Re validity of relationship. We’ve been together since 2011 and have always texted on iMessage and used FaceTime when my wife is in America.
1) How do we prove that? Is there an App?
2) Will the network provider assist?
You should be able to get iMessage and FaceTime records off your phone or iCloud, or your computer, if you have Apple.
If you do a Google search, it looks like there are various tools you can download which can retrieve your message/call history.
Absolutely absurd to suggest we got married and waited 7 years to pull apply for a visa in an audacious fraud.
But you haven't been married for 7 years, you've been married less than a year, and you have also not lived together since you got married... so for all they know, you only met last year, then got married just for the sake of eventually getting a visa, but it has taken a while to meet the requirements and you have had no contact since then.
It used to be that if you were already married, you only had to provide 1 photo and your marriage certificate, whereas if you were applying for a fiance visa, you had to provide evidence of the entire length of your relationship.
However, they changed the requirements a few years ago, and now you have to show evidence of the entire length of the relationship, even if you are married.
It's especially important to show 'intervening devotion' in the time you've been apart since you got married (so for the last year), because most people will live together from the day they get married.
Also remember that some people will have met and married many years ago, then lived together in another country for, say 20 years, and have now decided to move to the UK to start a new chapter - so it's not unusual for someone to have married and then applied for a visa years later... in which case, they need to prove that they have continued to be in a subsisting relationship (i.e. have lived together) for the entire 20 years.
It might not seem logical, but we have seen visas refused because people who had been married 20 years thought that providing just their marriage certificate would be enough.