I asked Deck and he said:
<Frosty> Hey, Deck, can you give a ruling regarding approvals? I was informed by Objection,
http://www.smogon.com/forums/showpost.php?p=4418946&postcount=9961, that UC got from reffing rounds up. But later when I claimed some UC from the Pike, IAR said that I couldn't round it up, saying that "TLR only awards a UC for every four role-plays (or 0.25 per Roleplay truncated), the KO Bonus for regular 4v4+ Matches is truncated, iirc (I never claim extra half UC's anyway), so I did not think Pike should be any different to anything else". He said he was going to stalk you for a ruling, but since we are here I thought I might as well.
<Frosty> to be more specific, I got 12.5UC from a Pike. Objection says I can round it to 13 and IAR says and I can't and I am confused as hell >_<.
<Frosty> *that I can't
<Deck_Knight> If the source says the UC is truncated, truncate for that source. If the source doesn't specify, use normal rounding rules (which for .5 is up)
To be honest I am not a huge fan of double standards, so it may be wise to ask EM (since he is in charge of the pike) to put "truncated" on the Pike somewhere (the OP doesn't mention it), but in the meanwhile I think I get to round it up, right?
Thanks for your time.