What authority should I contact in case of GDPR breach?
I started with one low-profile Eastern European webshop I'd previously used.
I emailed them, and asked for all the data they had about me, plus a list of the third parties with whom my data had been shared; I also asked for the contact details of those third parties.
Apart from a polite and generic reply I got nothing. So long about going down the rabbit hole.
My question is this: what low-budget tools do I have to force a given company to hand over all the data they have about me? Are there national / EU wide authorities to whom I can write to complain? (I have no money for legal support).