why should i complaint?

first of all, i just came back. from a memorable trip.
second, i was using Qatar Airways. Just because it was the cheapest fare i got for that selected duration.
On top of that, i used to travel using Qatar Airways and it was good to me, previously.

When i was going for the trip with so much excitement, i just found out that i need to charge my CC again for so called new transaction of the return tickets. It was 930 am, and i left like around 40 minutes as far as i recall before the plane leave me for Doha destination. It was not a good news in the early morning and nearly demotivated me to move on for the trip. However, since they said that i can claim it back, nah, i give them a green light to re-charge again my CC with the same full amount. Oh, and i forgot to tell you. Why this thing happened? apparently i changed to new CC (eventhough under same account) due to my previous card was found to be mis-used by some internet charging for things without my approval. the bank advised me to cancel my CC (remember this was the one being used to purchase the tickets) and got me a new one. during the check in time, i need to show upfront the CC being used during the purchase and guess what, i dont have it. (yeah MBB already like torn it apart and buang for me, TQ). so.....this was the first hassle.

through the journey, i did not use any Qatar Airways ..and why should i use it?  so nothing serious happened as matter of fact. 

Now it was time for me to get back to my comfort zone - home. remember, do not buy any flight that has only 35 minutes before the next connecting flight. na-ah, at the end the flight left us, 12 of their passengers from London. for me its quite ridiculous and insane, they should wait for us. if i was the only person, ok i get the reason for not waiting, but its more than 10, its 12! I was the first person to jump down the flight and managed to be front of the gate at 8.05pm and they told me the flight already left? Nonsense! it supposed to leave at 8.10 (ok fine only 5 minutes gap, but im not that late OK). it was such a disappointment how they just calmly said that the plane alrady left and they dont even asked why i felt so sad and angry that time? (ok dramatic me- forget this). Fine, i got the so-called 5 stars, 3 stars hotel, but i dont give it a damn, i just want to get home. the next connecting flight is in the next morning. I was in Doha, and time difference is 5 hours. now you calculate what time should i reach KL next day. (experience of stranded and liters of tears in the middle of airport - what a shame). don't blame my emotions, i was just so unstable that day. some people knew why.

OK. now i am on EL. And tomorrow i shall complaint. i don't care what people said. i need my money and my comments should be in their system. i feel jinxed by Qatar Airways.