When the tyre is on the balancing machine, do take note if there are movements in the tyre/wheel when it is spinning.

Also check if there is abnormal corrosion or dirt on the mounting surface between the wheel and the brake discs, preventing the wheel from being mounted properly.

Check your suspension components for play and also your driveshafts.

I had a case of vibration that is due to the driveshaft being bent.

If all fails, ask the shop to change the tyre.