Hello guys, long time lurker, first time poster

About week ago, my "3" key (not the one on the numpad, but the one above W and E keys) on my Filco Majestouch2-104key (bought from keyboardco) sometimes didnt register the keystroke and I had to repeat it. It usually worked on the second attempt so I thought its no big deal. But today I pressed it, nothing happened, then I pressed it to the end (no big force, normally) and since then its not registering the keystroke at all. It feels like it doesnt go all the way down compared to other keys, but its very very slight difference. Also it sounds little bit higher, again, very slight difference, doesnt have to mean anything. I suspect its some dirt though. I dont know if there is a way to open the switch without desoldering on plate-mounted switches, but I assume there is not.
So obviously I need to change and/or clean the switch...
Problem 1 - I have never soldered/desoldered, do not know how to do it and have no equipment to do it. I am also not very manually skilled so I would be worried as I could damage the keyboard with my luck...
Problem 2 - the warranty from keyboardco is most likely over, as I bought it in early 2011 and on their website they say warranty is for 1 year
The best solution for me would be to send it somewhere to repair it, but I have no idea where to and as I live in Czech republic, it can get quite expensive if its outside continental Europe.
So, what to do?
Thanks for reading!