The declining deductible is a feature of AT&T's version of mobile insurance with Asurion. I don’t think it’s available with Version. The AT&T insurance also covers screen repairs for $89.00
Do you have renters or home owners insurance? I asked mine and was told my devices are covered for theft at full replacement value, minus my deductible. I’m not sure it covers loss though, since there’s no police report. And of course, accidentally damage is not covered, therefore I also pay for the AT&T insurance and no AC+.