GLS said I signed the package on reception but I n...

GLS said I signed the package on reception but I never received it. I tried to call them but their number is blocked. I sent a complaint through their website, they said they would send me a confirmation by email but I did not receive it.

How can a company based on lies and fraud still be active? I will file a complaint to the sender and ask them to stop any service they have with you. This is not serious.