If I could give Singapore Airlines MINUS stars then I would, they do not deserve even half a star - I am begging everyone NOT to use this disgraceful company!!!
This airline is supposed to be the best in the world yet has absolutely NO customer service or processes for anything. I was flying from Heathrow to Bali for my honeymoon and they lost my bag, they couldn't have cared less - gave me a measly £30 at Bali airport for 'essentials' and then proceeded to send me an automated email every day saying they were doing their best to locate my luggage, what they were actually doing I do not know!! You can email, tweet, call the Lost and Found offices as much as you want but NOBODY will reply to you, they do not care. I was so desperate for my bag I called the Lost and Found office 42 times in one morning and not once did they pick up.
After 10 days, I finally got my case back but ONLY because my sister had travelled to Heathrow Airport off her own back and literally begged to speak to somebody there who could help. It turns out the bag never even made it on the plane and was lost in the sea of luggage at Terminal 2. Fortunately a member of staff found it a few days later and put it on the plane, only for it to be sent to the wrong hotel with no warning they had even found it!! If my sister hadn't have gone to the airport herself I know I still wouldn't have my belongings back, it is an absolute disgrace and bordering on theft that they are holding hundreds of bags ransom in the airport because nobody can be bothered to go down and put them on the right flights. The start of my honeymoon was absolutely ruined and I had to spend the first 3 days re-buying all my toiletries and clothes.
Singapore Airlines has absolutely no process for missing/delayed bags and having thoroughly scrolled through their Twitter I have seen hundreds of people in the same situation. It is impossible to speak to an actual human being and all you get are generic responses.
If you value the contents of your suitcase and do not want your carefully planned trip RUINED, DO NOT USE THIS AIRLINE!!!!!