V0RTEX

I've been in 5 events now and won 4 of them. I've gotten the same Rune of Spoil 4 times. Is it actually random runes or if you get rune of spoil the first time then you will always get rune of spoil?

Guys yesterday I was doing tts quest for about 5-6 hours. First 3-4 hours were pretty good and I was getting recepts a good amount of times. But then I stopped getting recepts. I'm not joking I got 20th haste potion in a row. 20 times i run and 0 recepts im not joking guys. Is this some bot prevention because I was doing it for long time or what? I've never seen someone get only haste potions and adena for 20times in a row. Please tell me if that was bugged or something or some bot prevention. Also does premium account increase quest chance to get recepts or no?