Fnb brain drain

The silly people at fnb dispute department are continuing with the decline of South African nation, perhaps they should join the ruling party and continue destroying the SA nations service delivery . I bought two pillows on my DEBIT card at dial a bed hillcrest , not credit so I used my own money. The transaction was declined for some reason and I was given declined slips by dial a bed hillcrest and asked to take it up with my bank. I did and the silly fnb personel want to investigate the issue, even though dial a bed hillcrest is not disputing that the transaction did not go through. Fnb is further sending me emails asking for proof of payment ( when all I have is a declined transaction) . Fnb should just pick up the phone and phone hillcrest dial a bed and check with them, don't apply your own silly mind.