Poor customer service at CTM

My recent experience trying to purchase good at CTM Pinetown has been less than pleasant.I selected my goods and proceeded to hand over my CTM card.I received instant notification thanking me for my purchase via a text message, the transaction was declined on the machine?The salesperson said this sometimes happened and RCS was to blame and that the same thing had happened to another customer the day before.He then called RCS, they sent only to be told that the transaction was not reflecting on their side as yet and for him to try again.The salesman had tried twice and was told I would have to wait 48 hours and would have to return to the store. I was not allowed to take the goods. The store manager said they put through 1000s of transactions and this sometimes happened and it had nothing to do with CTM. I left the store and immediately contacted RCS - My transaction had gone through and I could take my goods - I was already on my way home.