USELESS PAXI INSURANCE

I have just sent a parcel through Pep ( Paxi) this morning and I paid for insurance on the parcel. I was given a slip with details as to how to activate insurance. I sent a WhatsApp to the number provided, but the number seems to be unattended because they're not even responding to my message; needless to say I have tried many a times. I need to know how do I get the assurance that my parcel is covered by insurance if the WhatsApp number is not even active ?