New retainer moving teeth the wrong direction for 2nd time - advice? (photos)

I had orthodontic braces 4 years ago and have been wearing a retainer since however my retainer broke slightly so I had a new one made which didn't fit properly and mover my teeth the wrong way. Luckily the dentist refunded me but I still use him for regular check ups. Last week I went for a check up and he pressured me into buying a new retainer again I've been wearing it and the same thing has happened theyve moved the wrong way and my old 1 won't fit. What do you recommend to straighten them