namespace AppBundleService;

use DoctrineCommonPersistenceObjectManager;
use SymfonyComponentSecurityCoreAuthenticationTokenStorageTokenStorageInterface;

class BonusService {

    private $user;
    private $manager;

    __construct(TokenStorageInterface, $tokenStorage, ObjectManager $manager) {
        $this->user = $tokenStorage->getToken()->getUser();    // Sometimes fails here
        $this->manager = $manager;
    }

    public function hasBonuses() {
        return count($this->manager->getRepository(Bonus::class)->findBy(array('contact' => $user)) > 0;
    }
}

services:
    _defaults:
        autowire: true
        autoconfigure: true
        public: true

    AppBundleServiceBonusService:

twig:
    ...
    globals:
        bonus_service: '@AppBundleServiceBonusService'

...
{% if bonus_service.hasBonuses %}Have Bonuses{% endif %}
...