No connection on delivered router and fees still being deducted after months of cancelation,

Received online order today for router and unlimited data. Seems sim is not active, have called the call centre 20+ times cannot get to a agent. One that said she will fix and call me back still havent called back and sill not active.

Also have a device fee still deducting from my account since Jul expiry, Never sorted. I want my refund.

Also have a cancelation that was given in 2021 April that ran until +- April this year and only cancelled a year later. I want y refund.

Call Centre useless!