I also kena something like this. Ordered McD meal with 2 sundaes. When rider came, only the meal was delivered. So I emailed their support saying there's missing items.

They replied me that upon investigation they will not be refunding me with the missing items value. So I shot back saying this is a scam as I paid for something but goods not received, and will report them to KPDNKK.

Within 30 minutes their manager called me say sorry and will refund me with voucher.