If taking out the battery and the module don’t get the phone charging again, in this situation you could
- try to get a different charger and a different cable from a shop nearby.
Chargers and cables are widely available, so this is easy … but if something in the phone is broken, it will not help. - try to get a universal external charger to charge the battery outside of the phone. This is more tricky, since not every universal charger (despite the name) will fit the contacts and specs of the battery.
Perhaps a phone shop nearby can help you find a fitting one, here’s an example for a fitting charger.
Once you have a working external charger, a spare battery would make this a really good Plan B (something you should definitely have when you think “I really need …”), as you could use one battery while you charge the other. There’s a possibility Vodafone shops could have Fairphone 3 batteries, since Fairphone and Vodafone started a media-effective cooperation a while ago.
(If ordering online is a valid option in your situation, that would work for the charger as well as for the spare battery, of course, but it doesn’t help you quickly.)