stone2: Sorry, I meant to say that after checking again with telecom they said it was on and they would turn it off.
I tested speed after they confirmed they had finally turned it off.
Still, I might email them just to make sure.
I hope they didn't say they were turning it off on the spot for you. Generally, in order to turn interleaving off, the ISP has to send a request to Chorus. Due to Chorus work hours over the weekend the interleaving request may not have even started to be processed until this morning.