I ordered a pair of shoes at LePape and it continu...

I ordered a pair of shoes at LePape and it continues to be a miserable experience. I ordered a wrong size, called them to reserve another pair and sent the correct documentation per mail for the exchange process. As requested, I sent them back on my own expense and although the Belgian post clearly indicates the shoes have been delivered on 2 May (see picture below), LePape does not acknowledge reception, although we are 9 days after delivery to this day. As a customer I feel cheated and helpless.