If your device isn’t charging and you suspect the charging port is damaged, test the device with a different charger – but make sure it’s designed for your phone model.
Fluff and small bits of debris are a major cause of charging port faults. Before you pay for any support, shine a light into the port and clear out any dust or dirt. Be extremely careful though, as you can easily damage the charging port. If you’d rather not risk it, many repairers can use compressed air to fully clean the port out for a small cost. If fluff or debris doesn’t appear to be the problem, get in touch with your phone manufacturer or service provider as the device may need replacing.