hello,
sorry to hear that.
please consider also reaching out to local Angels (London or Edinburgh), 👼 The Fairphone Angels Program and Map (Local support by community members)
or even posting directly in London topic
Anybody interested in a London based event? - #31 by SomeNerd (though it has not been that active recently)
on a final note, it should be possible to charge your FP4 battery using a third-party charger, for details have a look here