After exactly 2 weeks of straight-up lies about my parcel being in delivery, three talks with the customer service, they've sent me a mail declaring that the items I have ordered (and were supposedly on their way) are in fact out of stock.
Before this, they refused to send me any updates about the whereabouts of the package, I had to reach out to their amateurish live chat support to find out everything.
The funny thing is that both items are still in stock on their website (and in my size) so even their last mail was a lie.