Unacceptable service

It appears that either FNB's card system is more offline that online or they discriminate against other banks. My reason being that their card machines keeps on saying that you have either exceeded your daily limit or have insufficient funds, especially when you are a Capitec client. I had an incident the past weekend at the Shell Garage in Stirling, East London, proving this and even a friend, also having a Capitec account, had the same experience as we tried using his Capitec card. This makes clients of other banks look like fools and that is not acceptable. Even the attitude that we received from the Shell Garage staff was totally unacceptable.