Company sold while on LTD

Hi,

I was working at a company for years and was on LTD when it was sold. Most employees were paid out but since I was on LTD my employment was moved to my parent company instead. LTD payments remained the same but my benefits package is now changed, where I had amazing benefits before as I had opted for the extended benefits and had 100% coverage on things like physiotherapy, medication, mental health support etc. it is now changed with my parent company where I still pay the additional for extended but the benefits are different, I now need to pay a deductible per person on my benefits annually per type of service and the coverage is not fully covered some have been lessened to 70-80% coverage which in my opinion is hindering my potential to be able to heal and return to work quicker instead it has added additional stress and I can no longer afford these services so I am unable to get the needed assistance for recovery. Is there anything I can do about this?