Lost parcel, unable to locate

I am very disappointed with PostNet Southern Africa. I sent a parcel from Nelspruit on the 20th of June. The last update on the parcel was on the 22nd of June. I understand there were some backlogs due to Covid-19 and I waited patiently. Now they say the parcel may be lost?! They are unable to locate the parcel. I have not received very good service from PostNet after numerous e-mails and calls. PP***