Bhai I cannot tell you what to do, to book loss or not to is your choice alone
All I can say is buying this share above 11 is totally a wrong thing to do, either do not play this stock or if you are going to trade it, buy below 10 sell above 11 pretty simple, chance of 15-20% gains. Buying above 12 is a massive gamble, it MAY go up but in most cases it WILL go down.
So for any gambler (don't kid yourself if you are in QUICE you are a gambler not an investor) the upside has to be better then the downside and at 12.50 there is only and only downside (from my point of view). The best thing to do at 12.50 is to avoid it, but if you really must buy just buy a very small chunk, and keep cash to average it when it falls.
May allah help you cover your loss