While consumers today are protected by a myriad of regulations at both national and European level, it can be a nightmare trying to navigate the rules so as to understand whether your rights have been infringed.
Of course, this becomes almost impossible when living in a foreign country since you are unlikely to have that base knowledge that one builds with regard to 'how things work' in one's own country over many years living there.
An English-speaking lawyer can advise you as to your rights and provide information on the best option - including non-adversarial options - in order to defend your rights as a consumer in your country of residence.