woollettg:
My sister is with 2 Degrees, her speeds are garbage as well.
Please note - 2degrees (as per the above) own Slingshot, Orcon etc. Highly likely your sister is on the same Vocus core as you are as they're currently migrating customers over. Some legacy 2degrees customers (such as myself) are not seeing any issues but I can verify I am still on the old network. This issue only appears to be relevant to the Vocus network.