The Samsung A9 was keep deleting App ie WhatsApp and others

I am facing very difficult situation with Samsung and Edcon stores Edgars partnerships as worker pinpointing both companies. I bought two cell phones December 2019 Samsung A9 end and Samsung J5. After owing this Samsung A9, it was not updating software in within 13 after we got from Samsung store. I have been making follow up with Samsung store, ended up phone Samsung the Repairer, last answer they told me that they waiting this Samsung to respond. Currently no one know where is the device, I am being ignored by Edgars and Sumsung. The Samsung A9 was keep deleting App ie WhatsApp and other, when take back the phone, salesperson told me that it’s a software problem. It was taken by them, only to find that is still within the shop, and they telling that they are waiting for Samsung to send courier company to collect. Now I am without a phones for very long, on other side I am paying insurance to edgars every month.. Samsung shops they keep fearing me that I rather see where to take the A9 Sumsung because the Shop is no longer making profit, and can be closed any day. All this happening in Lephalale, Limpopo Province.