Hey there hope you fine. Really sorry for your infertility. Its good that you are looking for treatments and choosen surrogacy. Well I had also faced the same situation like you. My in-laws was also against surrogacy but my husband supported my decision. We take our in-laws to doctors with us. Doctors told every thing to them in very detail.They finally realize that it is not a curse, infact a blessing of science.All that was not that easy the way it is looking. Convincing them was very very hard but we did that. You people can also do it. Talk to them very politely.Take them to the clinic.Things will be alright very soon.They will agree after all they are your parents.Our good wishes and prayers are with you.Cheers.