Avertising a service they cannot provide

I tried booking a ticket with Kulula this morning. Wanted to make SID payment and after wasting time going through the whole process only to be told by Gary at Sidpayment that they do not accept Capitec so I lost my booking. Why are you offering a service you cannot provide and please do not tell me to take it up with my bank. Kulula is the service provider here. The other day I flew with Skywize and had no issues using a debit card. Is my money not good enough. Really Kulula get real and get with the times.