list_display = ['payed_at', 'offer', 'amount', 'name', 'email', 'perk_names']
search_fields = ['name', 'email', 'offer__title', 'offer__author']
list_filter = [PayedFilter, 'offer', PerksFilter]
+ search_fields = ['user']
actions = [export_as_csv_action(
fields=[
'id', 'offer', 'name', 'email', 'amount', 'payed_at',