I see. In this case, anyone from your company (or even outside your company) who knows your work will be a great evidence to have.
It takes some time to gather evidence, keep trying, there should be a way out Note, I might be wrong, and pls do ask for other’s questions.
Btw, if you use ios, you might like the following event on Clubhouse tomorrow.
[MON Feb 8, 11 AM PST
Want the freedom to live in the UK? Get a Tech Nation visa
w/ Jill Kowalchuk, Herman Komashko
Join UK Exceptional Talent in Technology visa holders Jillian and Herman (Canadian and Ukranian) for a behind-the-scenes look at applying and getting a 5-year visa to work and live freely in the UK.) ]