Hi
I recently bought a shop model Britax isofix base. I have since bought a baby safe car seat but when I try to fit it into my car the isofix doesn't feel at all secure. I ordered the wedge from Britax that is meant for bucket seats but it's made no difference. When the seat is clipped in it doesn't come out of the base but it moves within the isofix brackets and also off the seat if you hold the car seat handle and pull up
I already have a Group 1 Britax isofix seat which fits perfectly and is rock solid so not sure it's a car comparability issue
Any suggestions as to what I'm doing wrong/ how to remedy most welcome