PEP Paxi parcels

Good day

I have send a parcel with PEP Paxi. 7-9 day delivery. I was told latest the parcel will be delivered on the 15th of February. On the 12th of February I enquired why the parcel have not show any movement since the 10th of February. I got no reply form PEP Paxi. So I followed up everyday with and email to customer care. The 15th came and no delivery was done. I again followed up. The 16th I followed up with 2x emails and 2x phone calls and with the whatsapp chat they have. At the end of the day I was told with another call to them "Sorry mam they don't work on weekends you will need to wait till Monday" That is it no other feedback. This is not exceptable. I have used them a lot without problems, but this is the first time I took assurance on the parcel is that maybe the problem that they thought there is something valuable in the parcel. Hope I will get any feedback on this