RCS card not working

Try to use my RCS card at Engen ( the one i normally fill up at which accepts the card). When i paid with my RCS card, the transaction was declined and I was only then told hy the manager that RCS was not working.

I had to drive around to find an ATM to send cash to to withdraw funds to pay. I was frustrated as there was no communication up the retailer nor a sms sent to the customer about this inconvenience.

I then went a different engen garage( This accepts RCS as well ) to fuel up. Before refuelling, I asked the attendant whether there was an error with RCS ,where he confirmed that there was not. After i refueled, and i handed my card to make the payment, The transaction declined once again. The card is working fine as I used it the following day.

I took up the RCS , for the convenience of not having to use my funds . These were unexpected expenses. i frustrated as there is no communication sent out by RCS.

Where is the transparency. I was embarrassed twice in one day.How can i trust that this will not happen again