Discovery card complaint

Not impressed with the service received. I sent through all required documents and handed over documents. When calling to activate my card I was told I had documents missing. To which I said was not the case. Was then told it cant be activated as proof of address is not in my name- I handed over a letter stating this. Got told to then fill in a document and submit a certified copy of my ID. Now I get an email back saying it will only be activated in 4 working days. Surely it can't take that long?