postbank

I cannot understand why some people are in their jobs. I have a problem with my postbank card, and visiting the post office in Vereeniging, I was advised that my card is blocked WHY, the staff there was very friendly and said they would call their head office, to find out what the problem is, for 2 WHOLE days they do not answer the telephone. I have called their customer services line and they also do not answer their telephone. I am a pensioner and need to use my card to buy supplies. THIS IS NOT ACCEPTABLE. I was also advised that you cannot use they post bank card at atms or at tills.