Telia Not Withdrawing v6 Routes

Has anyone else experienced issues where Telia won't withdraw (though will happily accept an overriding) prefixes for the past week, at least? eg 2620:6e:a003::/48 was a test prefix and should not now appear in any DFZ, has not been announced for a few days at least, but shows up in Telia's LG and RIPE RIS as transiting Telia. Telia's LG traceroute doesn't of course, go anywhere, traces die immediately after a hop or with a !N. Wouldn't be a problem except that I needed to withdraw another route due to a separate issue which wouldn't budge out of Telia's tables until it was replaced with something else of higher pref. Matt