Complaining with poor services

I went to local petrol garage try to swipe essentials but the card keeps on declining but there is money in my account and a lot more than what I want to purchase and I am tired every day it’s me same client complaining now and then last week I was charged R15 withdraw fee for just doing cash back @shoprite now I have a card in my possession and there is money in my account but card can’t work and it has not expired currently Capitec has loss it’s culture it’s just nonsense service and you are not taking us very seriously