July 21 (SeeNews) - Austria's Raiffeisen Bank International (RBI) said on Tuesday that acceptances for its takeover offer for Southeast Europe-focused Addiko Bank rose to 55.50% of the shares subject to the bid as of July 20, from 55.32% on July 17, with no shareholders withdrawing their acceptances in favour of the competing offer from Slovenia's Nova Ljubljanska Banka (NLB).