NOT LISTENING & BAD SERVICE

My husband joined Bonitas in February this year & they sent a his card on 13/14 it has never arrived. I was told they do not issue another one. After waiting 3 months we phoned & told them we would pay the courier fees to get a card. They agreed & now we get a message saying one has been posted. We have not had any post delivered in over a year. I tried the WhatsApp number said Hi at.9.25 on 3/5 still no response. What do we do to get a card?? Surely it is not impossible to courier a card. We are SASSA pensioners so it will be costly but are prepared to pay for a courier.