Getting numerous messages and a phone call to pay but my dad is deceased

My dad passed away in the 11th of December. On the 15th of December we hand in all the necessary documents relating to his death seeing that he had a balance protection plan on the card. After numerous emails I still did not get a feedback they are busy. When Im trying to phone the claims department you press 2 than 4 on the number *** its rings than it gives you a busy signal.

Never have I expected this service from Woolworths. Never. I too have an account with them. His account nr is ***