Beste Freunde & schöne Erinnerungen – Personalisiertes T-Shirt mit Freundinnen-Foto (Schwarz, 100% Baumwolle, Unisex)

I ordered a personalised t-shirt and contacted Personelly several times to correct a delivery address error before the parcel was delivered. I never received any response.
DHL confirmed that only the seller can modify the delivery instructions, yet Personelly did not reply at all.
At this point, I am extremely disappointed by the lack of communication and professionalism. I would not recommend ordering from a company that ignores its customers once the payment is made.