What a horrible experience for you. You must tell the owners (will the other lady support you?) I would ask for my money back and give them the reference they deserve - can't be good for the business to have tutors like that!

I was very apprehensive on my first class but it was brilliant and I made lots of new friends too.

Videos and YouTube demos are great but you can't beat one-to-one tuition when you are new to all this - it should put you on the right path and then you can work at your own pace with on-line help.