Brick repair around duct

Hi, recently a replacement rangehood was installed at my home and the installer cut holes through the double brick wall for the duct but left quite some damage to the internal and external brickwork and there is a hairline crack in the mortar above the hole. They didn't use a hole saw so they drilled multiple smaller holes and they used a broken brick, some wood and Styrofoam to fill the hole for the previous rangehood pipe. This area is located in a roof cavity and the wall supports a concrete slab verandah above.

Will this effect the structural integrity? What sort of tradesperson would be best suited for the repairs?

Any opinions or suggestions are appreciated.

Thanks,
JerryM

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