The percussionist has been embroiled in a long-running war-of-words with his former colleagues after he was left out of their 2012 reunion, which produced hit album 13 and a successful world tour.
The band is currently travelling the globe on a farewell tour, and bassist Geezer Butler recently suggested Ward had been offered the chance to rejoin them for their last ever show.
"We'd love him to come on at the very last gig and be part of the whole thing, but he didn't want to do that," Butler told Radio.com. "And I understand: I wouldn't want to be asked to come out just for the last gig. It's a shame, but that's the way it is."
However, Ward is adamant he was not given the chance to turn down the offer to play at the finale of The End Tour.
"I never received an offer to play the final show of The End tour with Black Sabbath," he tells Rolling Stone. "When the tour was confirmed, my management reached out to the Black Sabbath management to inquire as to whether or not they would like to discuss my participation in the tour. We were told there was no interest. That is (the) last conversation we had with them regarding the tour... I will say that I wouldn't want to play only one gig when I am completely capable of touring... I wouldn't want to show up for only some of our fans and not for all our fans when I could have played multiple shows."
The End Tour kicked off earlier this month (Jan16) and is currently slated to end in Pheonix, Arizona in September (16), but the group is expected to extend the shows into next year (17).