Could Three make a low cost service for just battery replacement.
As people are keeping their phones for longer, the only real part of the phone that suffers wear is the battery, it would make sence that replace just the battery so users could keep their phone for another year or two.
So if your new 3 customer, battery replacement is X
And to show loyality If your a 3 customer for x years, you get % discount off the battery repair
I know repair services exist that do this, but this would be a streamlined process for battery replacement and Greenify 3
