They were really good up until some time in July -...

They were really good up until some time in July - used to be efficient and error-free. I understand covid may have slowed their operations, but in recent weeks, I had missing parcels (tracking said it has delivered to their warehouse, but the item was not listed in my suite for months), missing items on delivery to me, and wrong labels of items (it claimed it's dangerous goods and charged me extra fees, when those items are NOT).

Their contact number does not work, and no one responded to my email enquiry at all.