Silkair flight to Kathmandu

Grrrrr, it's been a rather bad morning so far. Currently I am griping about a credit card booking made for my silkair/singapore airline flight. When I tried to check-in to the flight, the counter lady asked me for my American Express credit card. (Why I booked using the Amex card is really beyond me because I rarely use this card?) Anyway, since I have booked this ticket about 2 months earlier, I have paid fully for the bill. Last month, American Express wanted to charge me $160 for an annual fee so I decided to cancel it. I thought it wasn't a big deal because I have no installments and I have paid everything in full. So when the Singapore Airlines lady asked me to produce the credit card I couldn't - it was cut in half and thrown into the rubbish dump. Instead of checking with the credit card office, they made me cancel the air ticket and bought a new ticket. Imagine the trouble it will cause me? I need to wait one to two months for a refund for a ticket that I have paid for about 2 months back. Moreover, will the refund go to my American Express account? Who knows? I was fuming mad because they made such a big deal on something I have paid for. With a budget airline I might understand but with a big airline like SQ, I thought they wouldn't bother their customers with these types of hassle. Anyway, I'll have to worry about it when I get back from holidays. I hope the holidays will help me get a new perspective. Maybe it's a small lesson for me to not fuss over all the smaller things in life.