Loyalty Awards ****!

I like Asian food and enjoy the food at Simply Asia. Therefore I app**** for a loyalty card. On a few occasions, and two weeks ago in particular I took the family for a meal. Knowing I had a number of loyalty points I thought it would be nice to have a generous meal, as I would get a substantial discount off my loyalty card. Guess what? The system that read the loyalty points wasn't working! And yes, this was'nt the first time! I budgeted for a certain amount off my bill, and was now faced with a higher unexpected amount. Strangely enough the credit card system was not off line - this worked perfectly. Only their loyalty system was off-line - go figure! I am curious to know how this works? In the interim I had to pay the full amount, received no apology/compensation from the management either. My question to head office... is their loyalty card system a ****? Because every time I have wanted to claim points/discount it is off line? You spoilt a nice evening out and have alienated me from your franchise forever!