Planet mobility The price is not right clinton twp, Michigan

I buy from Planetmobility.com a ramp for my wheelchair...the price was 127$ us...
it was free shipping...I click to be deliver in Qubec,Canada
the company call me and ask me for 20$ to ship to my address in Qubec,,I accept
few days after I check my invoice the marchandise have a higher price 172$
and when my parcel arrive down home UPS ask me another 42 $ for the shipping and the broker.
So at the beginning it was free shipping and 127$ and at the end
it was 172$ plus 20$ plus 42$
I write a e-mail to the company and ask them to explain why the price change so much..
they open my e-mail but no respond yet